that've

Inexplicably unrecognized contraction for 'that have'.
Those are the good things that've happened to me today
by Paraprax January 10, 2011
mugGet the that'vemug.

that've

That I've, or That I have.

An "uber contraction".
It could be the migraine that've had from staring at the forums for most of the day.
by nexus667x February 09, 2006
mugGet the that'vemug.