look up any word, like lemonparty:
 
1.
Inexplicably unrecognized contraction for 'that have'.
Those are the good things that've happened to me today
by n_presto January 09, 2011
 
2.
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