(verb) The male act of hammering the female partner with sustained, rapid thrusting during sexual intercorse, usually while in the "doggy-style" position.
May also be used to describe sports feats.
Bill really donkulized that chick! He was pounding her for like 30 minutes!
The Phoenix Cardinals were totally donkulized by the Cowboys; it was 75 to 3, final score.
(After a very long tee shot) DAMN! You seriously donkulized that ball!