What is Obj?
1.
Obligatory joke
in the usenet forum rec.humor posters who wished to talk about off topic information were required to add an obligatory joke. They prefaced this with the acronym OBJ.
I like oranges
OBJ: what do you call a man walking through the forest? Russell.
See
2.
Another name for getting a blowjob just a cooler way of saying it.
Dude, that chick totally gave OBJ last night
See