HTBT

A really in word used by dumbass bimbos, meaning 'had to be there'. Commonly used by the said trampy whores in order to make other people feel like they've missed out on something amazingly amusing, when in reality, the funny event was just lame and stupid.

(Laughs from the in crowd) *Approach*
Normal person: Hey, what's so funny?
*Grimaces*
Bimbos: HTBT.