Hah. Noted - my friend's English is not the best, but I think his example was like a someone tripping over something in the street. He physically performed something, and I guess I misunderstood! Ah sorry for butchering another language ;)

It reminds me of one time I was sitting in a bar in Spain, and a chicken walked inside. And it was a female chicken, not a rooster, so I thought it should be "polla" instead of "pollo". So I waved at the bartender and said "Mira! Está una polla en la barra!" and all the guys in the bar started roaring with laughter because "pollo" is male or female for any chicken, but "polla" in Spain does mean slang for "idiot". After that every time I'd walk into that bar they'd ask if I saw a "polla" hahahahah