A derogatory term used to call gays that perform anal sex in a hard fashion. The term comes from the word Bull as in ramming their horn.
I don't like to mess with him because he is such a Bullock in bed
Bull shit, a lie. But may be good if used as Dog Bullocks
Oh Mrs. Queen your dress is the dogs bullocks
"the dinosaurs were extinct when a giant fish came all over" Thats Bullock!