This term is used to talk about women (mighty be men too) that like to have a dick in their mouths. Being blow by a blowjob maniac is consider in every culture in the world as an extreme privilege, because the one giving head likes it and does it perfectly.
Blowjob pants are when people, specifically young and female, have holes in the knees of her leggings, jean, or pants. Thus suggestive that she/he got holes in the knees of their pants because they spent too much time on their knees performing oral sex.
sucking a man's penis or (cock) also know as a bj for short it's done in a simple way use tongue to move around cock and it's done with a female on her knees
guy: give me a blowjob's babe: mm that cock looks so good