(Verb) A sexual act that occurs when a man gets on all fours with his partners head between his knees. His partner proceeds to give him a blowjob and when he orgasms he squeals like a pig as his partner swallows his ejaculate.
She said she wanted me to be an animal in bed, so we did the hog-swallow.
When your masterbaiting but sucking a dick at the same time. Some partners do it while the other partner is sleeping, some people hate getting horgswallowed but also love it.