Semen that is pleasant to taste, easier to swallow, sweeter and less bitter than regular cum which is sour, most likely spit out, or used to lubricate other parts of the body. It can also be used to describe any one who looks tasty, sexy, attractive, edible, lick-able.
The difference between cum and yum really depends upon ones personal taste. She looked over seeing him for the first time, purred like a cat and said YUM!
by writenaked September 8, 2016

by www.yum.com February 26, 2023

Eating a snack that causes you to get an erection and compels you to produce your own special chip dip.
Shane just pigged out on some wings and fries! Hes now yumming and now he’s got free dip for round 2!
by Jdefineslife August 5, 2023

Person 1: your mom so fat when she stepped on the last stair the president killed himself
Person 2: yum
Person 1: huh
Person 2: yum
Person 2: yum
Person 1: huh
Person 2: yum
by May 17 2023 January 24, 2024

when you throw shade at anything another person shows affinity for. specifically when you hate on something a person indicates they like, esp right after they first express their affection. most applicable in a group setting.
TAIQUAK: haha, i know right?! this is gonna sound weird but i love the sound of air raid sirens.
KIKI: you a freak i always knew it. someone make this kid leave now before he serial kill in here.
ASIA: shut up kiki, you always yuck a yum, be real we know you have your kinks. you just too afraid to say it outa fear some mess gonna talk shit at you the same way you yucking on taiquak’s yum - like on his air raid sirens. try me. yuck my yum
KIKI: you a freak i always knew it. someone make this kid leave now before he serial kill in here.
ASIA: shut up kiki, you always yuck a yum, be real we know you have your kinks. you just too afraid to say it outa fear some mess gonna talk shit at you the same way you yucking on taiquak’s yum - like on his air raid sirens. try me. yuck my yum
by idtst June 23, 2022

The action of eating watermelon
by MonkeyBoy12369420 March 15, 2023

by Queenofnothing October 7, 2015
