Top definition
When two or more people reply to one another's comments on Facebook in a fashion that would resemble how they would use MSN.
I was going to go to sleep at 12, but then two of my friends started instant facebooking (IF)ing me, so I ended up going to sleep at 3:45.
by rebel wordsmith November 15, 2009
Get the mug
Get a instant facebooking (IF) mug for your cousin Bob.