Short for celibate text. When you receive a
booty call via text message (or sext, if you
will) but do not wish to oblige, it is the rejecting response text that brings the lustful thoughts to a halt.
Person 1: Last night he texted me "hey wanna come over?" and I really just didn't feel
like doing anything
Person 2: So what did you do?
Person 1: I just sent him a celebext back that said "I just demolished an entire pizza and am feeling
like a fat lazy slob so maybe another
time?"