A dildo used exclusively in the ass; used negatively as an insult to describe an individual who theoretically pleasures themselves on a regular basis with a dillrod.
You are at a bar waiting to order a drink. A dude walks in and cuts directly in front of you and orders a drink, and may possibly even say something to the effect of "sorry bro, didn't know you were waiting, my bad" and continue to order a beer. You turn to your buddy and say "what a freaking dilltoid".
a 125cc, metal, all-purpose, rotating, and vigorously shifting dildo with the power to rip vaginal tissue easily. using such a device has left people hospitalised for many years,
it is also known to make a woman become infertile and have immense cravings for sex.