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The act of spontaneous wandering that does not have a particular destination in mind, however this action results in wondrous, often life changing experiences.
One time a friend of mine went to the store to get some cupcake with her friend. They did not have them, so they went to the next city and had no luck there. They continued to hop different stores in search of cupcakes... until they knew it they were watching the beautiful sun rise on the Santa Cruz beach.

Another experience, was when a friend of mine went to go cupcaking along the coast, and discovered a beached whale. Seeing this was life changing to say the very least!
by Cupcaking Queen October 19, 2010
Public Display of Affection (PDA).
That one couple was hella cupcaking at the movies the other day. ;D
by Baaby December 06, 2007
The act of dipping another mans penis in another mans seaman and then fucking a girl.
Dude were totally cupcaking this girl tonight
by RiffIvy March 22, 2014
When a large amount of someone's butt or "cakes" are significantly exposed, showing out of their clothing or swim suit.
Swimmer: Hey bro, that chick over there is cupcaking pretty hard!

Friend: Oh my god! I just wanna take a bite outta that right there!!
by Da swimmer May 02, 2013
texting someone while in the same house or room as them while in a group of people. usually to gossip or flirt.
you can tell when two people are cupcaking by watching them. if person A and person B are constantly looking at each other after reading a text to if right after person A sends a text person B looks at his/her phone.
Alexis: omg you can totally tell that Chris and Kelly are cupcaking!
Rachel: i know, it's so annoying. i mean COME ON are we still in High School school?!
by meow =^_^= July 18, 2009
When good friends get together, go to Wal-Mart at 11:30pm to buy the mix & sprinkles, decorate them all pretty-ful, write on post cards silly notes like "We were going to TP your house, but we decided to cup-cake you instead, ENJOY!", leaving them on people's door steps, ringing the doorbell, and hauling ass. Hiding behind a bush/trash can/underneath a car is always the best part of cup-caking. The reactions of the neighbors is also a delight! Will they eat it? Throw it and try to find the asshole teenagers commiting random acts of kindness? The intensity is overwhelming.
"My friends and I went cup-caking last night"

"Is that where a midget eats out a porn star?"

"No it's when good friends get together, go to wal- etc, etc."
by Liz, Devin, and Maggie August 06, 2007
when two people are sweet on each other and everyone knows it but they're not going out yet
"Kaitlyn and I are cupcaking...I think I might ask her out soon"
by coronaextragirl January 30, 2012