adj. describes someone who is not quick-witted enough to come up with funny comments in
real time in response to what
people have to say, but is very capable of coming up with funny things to say to people
online.
People who are facebook funny must be given the spatial separation necessary to diminish the effect of a temporally delayed comeback ruining the comic relevancy of their jokes.
Todd is a real drag to be around when you talk to him face-to-face, but if you post something on his
wall you can expect him to come up with something
pretty facebook funny within 24 hours or so.