I get knocked down!

What a diffence one word at the end of a sentence can make. If I walk into a room and say "I just threw up!", you would ask if I am ok. If I walk into the same room and say "I just threw down!", you would ask if the other 7 guys in the parking lot are ok. I mean you can get accidentally knocked down by a stranger, but you can't get accidentally knocked...oh wait...uh oh!