look up any word, like blumpkin:
 
1.
an outdated saying that nobody really uses anymore, except for the really stiff old people
Jane-lets catch up sometime
John-you mean chill sometime
Jane-no i mean catch up some time
John- lol who says that anymore
by mandatguru April 11, 2013
 
2.
When a person pretends to be your friend by calling you so he/she doesnt have to see you, opposite of lets hang out sometime. Very common between to people who just broke up. Will last until both parties have got the point that in a relationship their cant exist platonic friendship.
lets catch up sometime, il call you; or you can call me.
by sarkosy April 06, 2008