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This is the term for when a girl hooks up with a guy, and then the guy becomes clingy and attached, forgetting that it was just "a good time." It is the combination of the words: Cock and Kukoo. It is used to describe when a man becomes clingy, similar to when a woman becomes clingy it is known as "dickmatized."
As soon as she slept with Ruben, she knew he was going to go cockoo on her. And she was right.
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When the male phallus inadvertently emergences through the gap in one’s boxer shorts, often unbeknownst to the owner, and hence resembling a cuckoo clock chiming.

Unlike a cuckoo clock, however, there is no pleasant sound, just the sight of some reprobate’s rancid schwantz.
Lawyer 1: ‘so I said rather comically, ‘mens rea’ sounds like the sibling of Dire and Gonnie, and she said..’
Lawyer 2: ‘I’m sorry, Babs but I cannot concentrate because of your cockoo.’
Lawyer 1: ‘My cuckoo? I don’t have a pet cuckoo?’
Lawyer 2: ‘I said ‘cockoo’, Babs, you wankbiscuit. Your tallywhacker is making an appearance about as welcome as Adolf at my bar mitzvah’
Cockoo by Anonymous submissions January 11, 2024
When the male phallus inadvertently emerges through the gap in one’s boxer shorts, often unbeknownst to the owner, and hence resembling a cuckoo clock chiming.
Unlike a cuckoo clock, however, there is no pleasant sound or imagery, just the unwelcome sight of some reprobate’s rancid schwantz.
Lawyer 1: ‘so I said rather comically, ‘mens rea’ sounds like the sibling of Dire and Gonnie, and she said..’
Lawyer 2: ‘I’m sorry, Babs but I cannot concentrate because of your cockoo.’
Lawyer 1: ‘My cuckoo? I don’t have a pet cuckoo?’
Lawyer 2: ‘I said ‘cockoo’, Babs, you wankbiscuit. Your tallywhacker is making an appearance about as welcome as Adolf at my bar mitzvah.’
Cockoo by Anonymous submissions January 11, 2024
When the male phallus inadvertently emergences through the gap in one’s boxer shorts, often unbeknownst to the owner, and hence resembling a cuckoo clock chiming.
Unlike a cuckoo clock however, there is no pleasant sound, just the unwelcome sight of some reprobate’s rancid schwantz.
Lawyer 1: ‘so I said rather comically, ‘mens rea’ sounds like the sibling of Dire and Gonnie, and she said..’
Lawyer 2: ‘I’m sorry, Babs but I cannot concentrate because of your cockoo.’
Lawyer 1: ‘My cuckoo? I don’t have a pet cuckoo?’
Lawyer 2: ‘I said ‘cockoo’, Babs, you wankbiscuit. Your tallywhacker is making an appearance about as welcome as Adolf at my bar mitzvah’
Cockoo by Anonymous submissions January 21, 2024

Yellow Cockhole 

Someone who threaten's to hurt someone in a wheelchair and when the person in the wheelchair stands up for themselves, the offender runs away with their tail between their legs.
Come back here and I'll shit down your neck you Yellow Cockhole!

Cockbomb 

An incendiary device that causes extensive burns to the crotch. Popularized by Umar Farouk Abdulmutallab, the "Christmas Day Bomber" in 2009, who failed to take down a Northwest Airlines flight, but spectacularly succeeded in severely burning his cock.
"They've really increased airline security after that cockbomber tried to blow up that plane. Now they make us take off our shoe, and then grab our nuts for a quick feel."

"What's that new machine in the airport security line? Oh, it's a body scanner. They added those after the cockbomber tried to take down a plane with a bag of explosives taped to his nutsack."
Cockbomb by SparkyMcG January 9, 2010

cockhoarder 

1. An individual who has an insatiable urge to be surrounded and/or filled by cocks.

2. A girl who in effect plays the role reversal game of trying to get any many cocks as possible.
Hey Todd, do you know that this area of Belguim is famous for cockhoarding?

That girl is the biggest cockhoarder we know, she is more like one of the guys, except that she gets laid all the time.

I see you cockhoarder!
cockhoarder by nolabexar August 29, 2009