BDS&M term regarding the insertion of a finger or other object up a man's pee hole and jerks him off until he orgasms "internally."
Thank you for eggplanting me with such amazing precision and skill, Mistress Jenna!
When a guy is planting his sperm into a girl either willingly or unwillingly.
Guy: Im 'bout to start Eggplanting all inside of you!
Girl: Go ahead i want you to!