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1.
someone who is cutesy and flirty with everyone, male or female.

see: cupcaking
i know this girl, shes a total cupcaker.
by c-raee October 14, 2007
 
2.
1. A guy/girl who pets, strokes arms, kisses shoulders, snuggles, butterfly kisses, or awkwardly stares into their significant others eyes in the blatant presence of other people.

2. A habitual violator of guy code and chicks before dicks.

3. Someone who continually updates their facebook/gmail status with how in love they are and how perfect their life is. (You are only lying to yourself)
1. Instead of day drinking, Timmy Franchise is on the couch whispering sweet nothings and acting like a total cupcaker.

2. Although Kara is a guest at my house, she feels it necessary to make out on the couch in the living room when I want to watch TV. What a cupcaker.

3. You know, for everyone who acts like a cupcaker on facebook we really don't care. You are like the person who talks on his cell phone on the bus/train; everyone may be keeping a straight face, but inside we hate you.
by ChiTNR March 31, 2011
 
3.
1. One or more persons who contributes or partakes in the act of cupcaking.

2. A person or peoples who participate in gratuitous and abnormally disgusting acts of pre-coital affection in the presence of other people.
1. If I come home and see Nesto cupcaking on the couch one more time, I'm going to slap him like a silly bitch.

2. Did you see those cupcakers at the restaurant? I actually threw up in my mouth. I wanted to spit it on them, but I just swallowed it.
by S & T October 20, 2007
 
4.
guy who acts like a female:sissified, gay
stop being a cupcaker
by KD08 August 25, 2009