(noun)
The act of ejaculating upon the bald head of a female with cancer, after she removes her wig and informs you that she has no hair. The encounter is rarely pleasant, as the male assumes he is set to fornicate with a female having a normal appearing, hair-laden head. Traditionally, the female, expecting that the foreplay will turn into intercourse, will remove her wig and ask the male if he would still like to have sex with her. The male, quite perturbed yet not wishing to hurt her feelings, agrees to allow her to perform felacio upon him, and will then subsequently ejaculate upon her bald head, creating the Conehead Sundae.
Edgar: "Hey Mike, did you end up fucking that blonde chick you went home with last night?"

Mike: "Hells no. Just as we were about to fuck, she told me she had cancer and took off her wig. I told her to suck my dick and I made her a conehead sundae."
by Viva La BAM April 12, 2014
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An increasingly popular nickname for SCOTUS Justice Amy Coney Barrett because her political sensibilities and oddly icy stare appear to be so alien, like she was dropped from outer space into her overly calculated, lie-peppered and creepily inhuman seeming hearing.
Let’s finally get a DNA test on Amy Conehead Barrett so that we can finally replace her destructive opinions with someone who not only reflects and understands the values of Americans, but Earthlings in general!
by Dr Bunnygirl May 24, 2023
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Cool guy with a big brain, huge muscles, a lovely smile and a great stream
Omg, I’m in love, he’s such a conehead
by MaybeFinnMaybeNot May 3, 2021
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1. Referring to one who deepthroats a dick down to its base with the greatest of ease and sense of determination.
2. An individual that partakes frequently and/or often in a fellatious manner.
"The bitch sucked the dick so long and so often I had no choice but to called her Conehead."
"It was insane Bro. She bottomed my shit out every time. She will now go by Conehead as far as I'm concerned."
by BuryBallz October 10, 2017
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