Mallow Cup 

When you cut a girls nipple and jizz in her boob.

"Why is Janes's right nipple cut up? Oh, its because Mark gave her a mallow cup. Dude, that's so awesome!"

Mallow Cup by Dmoney858 August 24, 2011

Cup O' Mallow 

term that means Hot Chocolate with ALOT of Marshmallows.

"The couple sat sipping a foamy Cup O' Mallow by the warm fireplace on the cold winter night.

Cup O' Mallow by Saxo-trumpet-clarinet November 18, 2010

Mallo Cup

deceitful horrible tasting candy on the outside, in reality, pure robot food

Do you see that robot eating those mallo cups?

Mallo Cup by Trebor H. November 29, 2011

Mallocup

After ejaculating in your partner's anus the sperm is pushed back out and some poop comes out with it.

For Valentine's Day, after anal intercourse his partner gave him a Mallocup

Mallocup by mouette February 22, 2011