When you pull out and drag it across their belly or pubic mound
Last time I was with your mom, I pulled out and gave her a penis slug on her pubic mound.
Someone who has a tendency to place themselves in relationships where the male counterpart has a large thick member not dissimilar to the shape of a slug.
"That girl Sarah is such a slug-muncher, her boyfriend Kyle has a massive slug."
A man that takes to long masturbating in the shower.
Im going to shower first, cause that Tug Slug takes forever.
Another name for an erect penis.
Hey bud, I'd suckle your Peanut slug for a double cheeseburger combo
Slamming your erect (or not) penis into the coin insert slot of a casino slot machine. Usually is until point of orgasm rendering the machine unusable because of the mass amount of seminal fluids.
Damn, slugging a Vegas slot really hurts but hell is it funny.
The art of dragging an uncircumcised penis (damp or moist) across ones face.
The boys were wild they were slugging one another.
When you ejaculate in a female (cowgirl) and she than shifts herself from penetrative to your chest and then rubs up and down to apply the seman on your chest like a slug trail.
"Jane finally took the pill and to celebrate she was slugging up and down my chest"