Someone who is fake. S.W.I.F.
She is swif. Stop swiffing.
by Mikanna January 22, 2021
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Acronym for 'So What Its Friday' its an angry reply to
TGIF ( Thank God its Friday) used when you are having a crappy friday in reply to all the TGIF
Ken : TGIF, Its been a shitty week, time to party
Salivavic : wtf SWIF , I'm still working tomorrow.
by thatlucifer May 14, 2010
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a promiscuous man, male eqivolent of a slut. swiffish behaviour: man who behaves like a swif.

a man who sleeps with many women, is easy, and isnt picky about preference. a person who is lead through life by his desire for sex. to do this is swiffish behaviour. A swif is the person involved in said swiffish behaviour.
by Sammyjo18 May 30, 2006
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When someone says he/she will do something and then does not do it because of of laziness, irresponsibility or worthlessness. Can also mean when someone needs to do a task within a certain timeframe and then gives notice of failure after the time has expired.
Sean: Hey Jeremy, can you get me my tickets before 6:00pm tomorrow?
Jeremy (at 6:30pm the next day): I will not be able to get you your tickets.
Sean: Damn, that Jeremy is always swiffing out...
by baaaaaaaab January 18, 2010
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