1. To masturbate by rubbing the penis, jack off.
2. To waste time in an annoying way. Goof off,
jerk around,
fart around.
3. A person who is distracted and wasting time. Also spelled:
jerk-off
4. An insult: something you'd call a person, implying vaguely that the person is clueless or inferior.
"Joe jerks off two or three times a day."
"Last night, his girlfriend jerked him off in the car."
"Is our son jerking off again, when he ought to be doing his homework?" (Yeah, the old man meant "
goofing off," but he said "jerking off."
Heh heh.)
"Hey,
jerk-off, quit watching the game and roll some dice."
"That jerk-off? He's a total douchebag."