Homestuck. Sweet bro and hella jeff. Or powerpuff girls.

three happy guys and a guy without arms

Headless (but not faceless) stick people.

multicolored stick people, 4 with smiling faces, 1 with a :| face. Also they have no heads, just stick torsos and a face

Every race is happy but the black guy

A cracker, an Indian, a nigger and a chink walk into a bar

A universe full of hotdogs

someone put a hit out on the planets in our solar system, the sun is all that is left

sun wonders about missing planets

im gay. yes, this is me coming out of the closet

A strong member of "team gay" flexes his muscles while claiming that he, too, is (what he is replying to is not clear).

Really Bro?

guy with "bro" written on his shirt with a brunette in the background saying "really?"

You are *not* my brother you bald imbecile.

fu*k u ass*ole