Carrie Underwood, not bad at all, well it's actually 'dug my key into "the side" of his pretty...' so in this case it means that: she used a key to scratch up his paint job. keying someones car ("I keyed that jerks car") is an idium for scratching a car so much that it's clearly visable and usualy long. hope that helps

It can mean 2 things, depending on the context. 1) He used his keys to drive another man's car or 2) He used his keys to scratch the paint (to vandalize) another man's car I can't know which without more context.

She is singing about vandalizing his car as retaliation for cheating. That particular lyric is her describing keying(running a key along the side of it to scratch it)the car. “Souped up” just means the car was nice and probably had luxury features added to it.

The actual words are: I dug my keys into the side Of his pretty little souped-up 4-wheel drive It means she vandalized his car by scratching its paint job.

It means, ‘put the keys into the ignition of a man’s status symbol four wheel drive vehicle’