Homewrecker, a girl that tries to come between couples, mistresses
That girl over there's been giving Megan's boyfriend head, what a swan.
by pseudonymphomaniacalbitch January 18, 2009
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This is a girl that has up to three major flaws, but is potential sex material regardless. The flaws can be weight, acne, bad teeth etc. The one exception is bad feet, which is unacceptable and is an automatic disqualfier.
She is driving a bucket, but she is a swan all day.

or
I went to the old head club last light and bagged up two swans.
by Wartime Consigliere January 24, 2010
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A female who, when younger, was a bit of an ugly duckling but grew up to be good-looking. Unfortunately, they have suppressed a lot of resentment regarding being the ugly duckling that she's actually turned into one of those women who are bitchy and arrogant. Much like real swans who hiss and chase you if you so much as look at them and could break your arm
Dude- Hey, isn't that Kelly? She grew up to be hot.

Fella- Yeah, but since that happened she gained too much confidence and started acting like she's better than everyone. She even upset the geeks last week.

Dude- But she was a geek when we knew her from school. She changed for the worse. Shes a swan for sure
by MartynStuff November 30, 2016
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sweet-tooth, 90 lbs bio buddy
me: can you donate blood?
swan: no, look at me
me: HAHA
by g-dogg-wu December 14, 2003
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To partake in mouth to mouth tongue jousting with a lady.
Ross has been swanning that girl for about five minutes now.
by John Longus Legend October 27, 2010
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A guy or girl who was not very good looking when they were young, but grew into their looks. They get hotter as they get older.
Guy 1: "Is that really Alexa?! She got hot!"

Guy 2: "Yeah dude, she's a swan"

"Nate, you look great! You're a swan!"
by shario15 April 4, 2014
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Used to describe a person who chickens out of important decisions or situations. Could also used a verb.
1. Don't be such a swan! Just kiss her you idiot!

2. Daaaang, just found he wanted to kiss me last summer..way to swan out, dude!
by KECK2112 February 2, 2012
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