The act of recieving many extra lives on the original Super Mario Bros. for Nintendo. At the end of world 8-1 you bounce on the beetle coming dowm the stairs leading to the castle thus increasing your extra lives.
The same as turtle tips except much harder to do.
Tim: Dude, don't forget to get your beetle bumps at the end of world 8-1 because you really suck at this game and need all the extra lives you can get.
Jeff: Oh yeah; thanks for reminding me.