You may wish to check out User:Cjewell/Userbox Instructions.

Computer Languages
xhtmlThis user can write XHTML.
Perl-4This user is an expert Perl programmer.
BASIC-1This user is a beginner BASIC programmer.
vb-3This user is an advanced Visual Basic programmer.
c++-3This user is an advanced C++ programmer.
re-3This user writes advanced regular expressions.
cmd-3This user is an advanced Microsoft command line script programmer.
Ananas comosus slices.jpg This user DOES NOT live in a pineapple under the sea.
This user does not understand Bullshit.
1337-1 Th1s us3r is 4bl3 t0 c0ntribut3 with 4 b4si< l3v3l of 1337.
AIM-0 This user does not understand, have any interest in, or does not wish to speak "txt"/AOLer.
ubx-5 This user uses entirely too many userboxes.
UnderwoodKeyboard.jpg This user is old enough to remember what a typewriter is, and that's all you need to know.
O This user's favourite colour is orange.
SNES 800.jpg This user feels that the SNES was the last great console.
Face-sad.svg This user is annoyed by admins ignoring process.
Face-grin.svg Hi! I am a userbox with a POV. I won't hurt you, I promise! Pretty please don't delete me.
0.9=1 This user knows that 0.999... is exactly 1, but acquired a migraine learning it.
Crystal package favourite.png This user was up all night finding userboxes and is now very sleepy.
PL This user is pro-life.
Statue of Liberty - USA.jpg This user supports the
Libertarian Party (United States)
GOP This user supports the U.S. Republican Party.
vrwc This user is a member of the Vast Right-Wing Conspiracy. Us flag large 13 stars.png
Flag of Israel.svg This user believes in a two-state solution to the Israeli-Palestinian Conflict. Flag of Palestine.svg
Flag of France.svg This user believes stupid, inconsiderate, and/or overly aggressive drivers should be deported to France as a war effort.
Flag of Mexico.svg This user abhors illegal immigration without exception.
ST-3-bud.jpg This user supports the legalization of all drugs for adults.
Antidope.png This user is drug-free.
No-EU.png This user says NO to the EU.
UN This user does not support the United Nations.
50px This user opposes gun control.
Male.svg This user is a masculist.
Female.svgMale.svg This user believes a marriage should consist only of a man and a woman.
Female.svgMale.svg This user is heterosexual.
Pagan symbol male phallus.svg This user is male.
Face-angel.svg This user tries to do the right thing. If they make a mistake please let them know.
  This user feels that only articles need a NPOV, and that displaying political, religious or other beliefs using userboxes and user categories should not be banned.
evol-0 This user does not believe in the theory of evolution.
Earth Western Hemisphere.jpg This user is not a biological parent.
GMT+9 This user's time zone is GMT+9
Flag of Japan.svg
This user comes from Japan.
Flag of the United States.svg This user is from the United States.
0 This user ranks a 0 on the Kinsey scale.
Fun Stuff
Musical note nicu bucule 01.svg This user enjoys singing.
bss This user sings bass in choir (or is a baritone with insufficient range).
Bicycle icon.png This user enjoys bicycling.
Road park Zagreb.jpgThis user is a roadfan.
Nuvola apps kbackgammon.png This user is a backgammon player.
Nuvola apps ksysv.png
This user passed GO !
(…so where is my $200?)
Informative 2
Fx This user contributes using Mozilla Firefox.
LJ This user maintains a LiveJournal.
?met? This user prefers metric units; however, growing up in the US, cannot relate to them.
AAThis user has an Associate of Arts degree.
Aspie This user has Asperger syndrome.
Wikignome.pngThis user is a wikignome.
pet-0 This user is not a pet owner.
Nuvola apps amor.png This user is single.
Nuvola apps amor.png This user wishes he had a girlfriend.
mankind This user opposes the use of gender inclusive language.
Uduiw.jpg This user is a member of Users in Defense of Userboxes and Individuality on Wikipedia.
.  T This user puts two spaces after a full stop.