when you have a very fashionable outfit and then put on something that is very clashing.
or
When someone is wearing something similar to your outfit but they make it look terrible.
That sweater is Ketchup on fashion.
or
Fucking Vanessa is ketchup on your fashion.
While receiving a blowjob, the man slaps the top of the head of his partner like a ketchup bottle.
Ryan gave his girlfriend the ketchup bottle while receiving oral pleasure.
The act where you grab your partner's ears until they bleed, put it all in a cup, pour it on one's genital's, and have your partner lick it up.
Man 1:Dude, Kelly wouldn't shut up until I gave her a Sexup Ketchup
Man 2:Awesome, I usually follow up with a pharaoh cocker.
Man 1:Cool
Sexual intercourse when the lady is on her menstrual cycle.
Andreas knew it was Yoanna's time of the month, but he was still up for a little Ketchup Sex. A nice bit of relish on the hotdog.
You get your dick with your girlfriends shit on it and shove it in her mouth, make her bite down as hard as possible until you bleed cum.
dude i just gave my girlfriend a hot fudge corndog with ketchup on it last night
Individual(s) that show up to Animal Crossing: New Horizon islands covered in "ketchup" and chase other players with axes
My friend Billy had a ketchup maid on his island! He must have been terrified