When combined with any noun, either as a prefix or as a phrase, automatically associates that noun with dildoes. Try any random noun, and you will be able to formulate your own "dilldefinition".
dillhole: a hole for a dildo or hole in a dildo
dillsack: a sack of dildoes, or a sack for a dildo
dillfuck: to fuck with or get fucked by a dildo
dillsmeg: dildo smegma
dillsmack: to strike or bludgeon with a dildo
Short for Evolution, a series of Harley-Davidson engines. The "big twin" Evo replaced the Shovelhead in 1984, replaced by the Twin Cam in 1999. The Evo Sportster or XL replaced the Ironhead in 1986 and is still in production, albeit in a rubber-mount format.