The act of murdering someone using only the 2ft long pink dildo found in a police station toilet in the popular video game, Grand Theft Auto: San Andreas.
"Oh my god, I let my 4yr old have a go at the motorbike chase for 5 minutes, I take a phone call and when I come back he's dildowhacking a cop!"
Pronounced dil-hoe (like dildo except a hoe). A dilhoe is an absolute hoe, except with dildos or cylindrical objects similar to dildos. She'll use anything as a dildo and will even borrow a friends or family members if necessary.
If she will get down with any cylindrical object but not with a real person, she's a dilhoe.