Leetspeak (13375p34|<) for the 3-letter word for "donkey" or your rear end in your nether region.

A powerful GM big-block engine, capable of delivering 400+ HP, usually found in vintage full-sized cars.

A powerful engine from oldmobile

A form of automotive air conditioning for cheap cars - four windows down at fifty-five miles per hour. Ususally pronounced "four, fifty-five".

References 2 different GM-produced motors. The pontiac version was good for keeping boats from moving around when attached to the end of a chain, while the Buick versions made 400+ hp and 500+ lb. ft. in stock form, or in modified form (like the one in MY pimp-455 ride) can produce in excess of 520 hp and 598 lb. ft. WOOT!

a buick motor that kicks the chevy 454 up and down the block

Just another GM motor that wishes it was a 427.