Top definition
TIAFL is an acronym for:

This
Is
A
Fake
Laugh

used in the situation when there is an awkward pause and to pass the time in an IM convo u just say "tiafl..."

its like when u say lol but u dont mean it or u dont acutally lol
Jim: hey did u hear that joke i made earlier it was so funny!!!

bob: tiafl...sure...
by stephers mc peppers October 26, 2009
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