noun, used to describe a person who says he's gonna do something cool, and then fails to follow thru.
Dano is a buttercup. he said he'd go to Florida and take pictures of my new home, and he swam at the pool instead.
by Mizzo to the I, Kizzo to the E May 05, 2003
When one cups their hand over their butt, farts into it and then releases it into an unsuspecting victim's face, and shouts out buttercup!!
by meow4life December 21, 2013
"They call me Buttercup, dear little Buttercup, 'though I shall never know why" Gilbert and Sullivan.
by Stevebot March 03, 2007
When someone feels they've been taken advantage of, and that they were told everything they wanted to hear.
by Wonder girl January 19, 2016
a buttercup is when you cup your asshole with your hand and fart while closing your hand into a pocket hence creating a area of pure ass for you to offer to the nearest friend or foe to sniff..
by eman/venice February 08, 2010
The act of getting snuck up on from behind and spied on - unauthorized lojack of information (especially when one's boss is a ButterCup)
by ReeseCup11 September 17, 2008
v. Going the extra miles for love or honour.
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Instead of getting ripped and loaded this holiday season I will be buttercupping. There are lives to save and songs to sing.
Respect dude.
Respect dude.
by gnostic3 March 07, 2015