Back on topic... Verbal blunders

My Mom would watch me ride off to school every day and wave, which was fine by me. It was our ritual. One particularly cold morning, I didn't notice the patch of black ice on the corner, and sure enough, I hit it while making my turn. Bike laid down, and so did I, and with the momentum I slid completely across the oncoming lane, coming to a rather inglorious halt in the gutter. My next utterance was that favorite fallback for teens to say when out of earshot of their parents. I picked myself up, and of course the bike was out of commission (twisted handlebar that I couldn't straighten myself). So, I limped back up the street home, dripping wet from the gutter, slightly scraped up from the road, past the kids who rode the bus to school.

I get back home to change clothes, ditch my ride, and try to catch the bus, but instead caught Hell from the 'rents, as sure enough, I wasn't out of earshot of Mom when I picked myself up.

Any ideas on why that bike got named "Dammit"?