1 definition by YBqwerty

M.U.S.

MakeUp Sex - the act of having sex after a lovers' quarrel.

Jenny: Why are you glowing so early in the morning?
Sandy: Mike & I almost broke up yesterday; But then we had M.U.S. all night long... (all night...)

or as a verb:
Sandy: ... But then we M.U.S'd all night long...

by YBqwerty April 15, 2008