A funny kind of crazy but on the verge of lunacy. You definitely want to be a part of something that’s cuckoo bats but have an exit strategy. You never want to be responsible for activities that result from acting cuckoo bats, hence the afore mentioned exit strategy.
That sounds cuckoo bats, let’s do it!

Nope, that’s cuckoo bats, I’m staying right here.
by Meridianprice August 22, 2021
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The act of intentionally having a child from another man and having your partner/husband raise it without their knowledge.
That bitch tried cuckoo birding me, but she didn’t know that I’m snipped.
by Thecuckoo December 02, 2019
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Made famous by Manny from degrassi,used to mean 'crazy' or 'insane'
person 1-"I think ashleys mom is hottt!"
person 2-"are you cuckoo-bannanas,shes like 60!"
by yayemilyy!123 February 27, 2007
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A crazy 60+ year old lady that lives in Valprazo Indiana and is higly obsessed with the singer actress named Mandy Moore. She also has a weird obsession with any young female singers. When American Idol is on do not think about calling her or she might throw fruit loops at you or sing cuckoo at you.
IM not sure what would make a good example of this odd cuckoo lady or many others that are like her. If she had the means of transportation she would probably be stalking Mandy right now.
by Andy Gump April 21, 2007
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When a man is having sex with a trach hole in a person's neck, deep enough to reappear through the mouth or other facial orifice, ejaculating at the top of the hour.
Noting the time, John skipped the Cincinnati Bow Tie and went straight for a cuckoo clock to commemorate the strike of midnight on New Year's Eve.
by cuckoo for cocoa puffs ! June 13, 2009
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A variety of especially hot hipsters in tha downtown. This may include BMORE, HoCo, Brokklyn, da BX, DC, and Fulton (see “fultonites”). Cuckoo Flyys may be seen in any of various sexual positions (they currently hold the world record for banging longest-74 hours!) and/or bumping and grinding in special Cuckoo Flyy clubs. Avid street performers, Cuckoo Flyys also have especially good miming talents and often use their ability to appear completely mute to take advantage of little old ladies and crack dealers. While not involved with drugs usually, Cuckoo Flyys are some crAZyyyy mofos man.
Brenae Fletcher and Austin's girlfriend are such cuckoo flyys.
by Cuckoo Mamaaa January 04, 2006
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