something meant to obfuscate or conceal the truth
This is the most half-baked cover up I've ever seen.
by The Return of Light Joker September 08, 2009
When a male uses a shirt that is 1 to 3 sizes too big for the purpose of covering up his boxer shorts and/or the fact that he is sagging.
If you use the cover-up, you won't get yelled at by a teacher for sagging.
by southparkrox September 18, 2009