slang for fellatio
"He quickly changed the subject when he realized she was going to ask him about that awkward term from his college days."
An act of fellatio, or sucking a penis or other phallic object (such as a dildo). Stimulation of a somebody's penis or testicles with a person's lips, tongue or mouth with the purpose of giving the receiver sexual pleasure. It may or may not result in orgasm.
"After hours of arguing about who was right, he suddenly leaned over and gave me the blowjob I had been hoping for all night."
In plain English: A blowjob is a sexual act where one person uses their mouth to give another person pleasure.
"He decided to avoid the topic when his girlfriend brought up her new partner's reputation for giving great blowjobs."
Usage: The word "blowjob" is a vulgar noun referring specifically to oral sex performed on a male. Use it only in explicit, informal contexts where discussing sexual acts is appropriate.
The term first appeared in the United States around 1933 as a combination of "blow off," slang for fellating that originated among prostitutes, and the word "job." It was created by merging these two existing phrases to describe the sexual act.