when your friend starts to date someone and they ditch you to hang out with their someone special. when it is severe enough then the name "weak-sauce" should be used. also appropriate if someone does something stupid or very embarressing.
guy: hey bro, wanna hit the mall up today
guy #2: no man im hangin with the lady tonight
guy: weak-sauce bro
guy #2: no man im hangin with the lady tonight
guy: weak-sauce bro
by kennell936 June 26, 2011