Burst Into Flames Laughing (the new lol)
Guy 1: What's black and at the top of the stairs?
Guy 2: Dunno?
Guy 1: Stphen Hawking in a house fire!
Guy 2: BIFL!!!
Buy It For Life: something that's meant to last; not disposable
Him: I'm tired of replacing my cheap tools all the time.
Her: Get quality BIFL tools that won't break so easily.