When a male puts one testicle half way into a vagina or anus. Said to look like an egg in an eggcup.
by JTsGrowler November 27, 2013
A nickname for anyone who regularly gives blowjobs (preferably in 69 position) where their nostrils are large enough to fit an average sized pair of testicles.
"Filmed a scene with Egg Cups yesterday. You're not kidding, my balls fit right on his damn nostrils!"
by bigmak93 September 6, 2021