1. A derogatory term for a homosexual man.

2. Someone who is completely insane.

3. A cake made with bits of fruit and drenched in scotch.
1. Uncle Jim married Pete? I didn't know he was a fruitcake!

2. Uncle Jim married a blender? I didn't know he was a fruitcake!

3. Me: What's a fruitcake?
Someone Else: It's a cake made with bits of fruit and drenched in scotch.
Me: Drenched in scotch? Sounds like my Uncle Jim.
by InfrequentNinja February 10, 2004
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1) The word fruitcake has come to mean someone who is round the bend, out to lunch, completely fucking mad. It came from the old British slang"Nutty as a fruitcake"(fruitcakes have got nuts in, ya see), because, as you know we've used the slang term "Nutters" for the insane for....well ever, really.

2) I do believe that some American people call gay people fruitcakes. I know that the term "fruit" has been used as a slightly derogatory term for Gay men(in the UK any way), but I'm really not sure where the "cakes" bit came from, or why!.
1) "Dave came round the other day, goin' on about these multidimensional life forms that are controlling his libido or somethin'" "Oh yeah, Dave's a total Fruitcake dude."

2)....Err not sure really!! I've never heard "fruitcake" used in this context. But "Fruit":

Err 2, take 2) "Look at John mincing about,......Oi John your a proper fruit mate"
by HungryGhost March 20, 2015
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A person who is insane, nuts, loopy
Brian Tamaki is a fruitcake
by Pol Pothead December 30, 2011
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UK English:

A person who is one sandwich short of a picnic; mad; quite insane; not with it, fucking crazy.
"I would even think about making a move on her mate, she's a fucking fruitcake. She's probably good in the sack though..."
by Esteban Lorenzo July 29, 2003
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to be like a fruitcake, utter foolish insane type behaviour.
fruitcakism is fruit and cake suffixed with ism to mean pure nonsense!!

A collective term for mass stupiditiy.
Charlie Sheen's accused of being 'the vatican warlock assassin..so the media hysteria over what was an in joke between Charlie Sheen and Alex Jones is fruitcakism.
by Burnt-Spider March 5, 2011
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a fruitcake is someone that is either homosexual or acts oddly on a daily basis
Nick, you are a fruitcake. You jump around all day like a tard.
by Ian Gamble September 19, 2005
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A gross cake-like thing that consists of nasty spices, nuts, anddried fruit.
"The trash compactor is full so just dump that in a pan for now." - Inventor of the fruitcake
by purpleppleater1234 April 10, 2011
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