look up any word, like muddin:
 
2.
Seriously, what the fuck
A: We have another test in math today.
B: Seriously what the fuck.

OR

A: We have another test in math today.
B: Seriously? What the fuck?

OR

Spoiledmonkey33: We hav another test in math 2day
Blazedbear4: swtf
by B to the en joe potterr October 14, 2009
 
1.
"She Wants to Fuck"

Commonly used to describe women that welcome men between their legs. One can tell that a woman constantly wants to fuck when she not only throws herself upon all those around her, but also make unnecessary sexual references to anything in the area.

To see if a woman is in SWTF mode, simply ask them if they like penis. If they respond with a smile, SWTF. If they don't, politely back away and apologize for the slip of the tongue.
Example 1:
Man #1: Wow, that bitch is really slutty. How many guys has she slept with?

Man #2: None. She is so horny I think she is about to hump that dude's leg. Imma go ask if SWTF.

Example 2:
My little sister's friend walks up to me and randomly gives me a hug. SWTF

Example 3:
Go to Taco Bell. The cashier gives me my change and she brushes my hand. SWTF
by DollaBilly September 18, 2010
 
3.
Stands For slut what the fuck
what you would say to your girlfriend/wife after cathcing them cheating or just doing something plain disgusting and wrong
Girl"Hunny i ate all your cheetos"
Guy"SWTF!"
by ALEX FUCKING CRUSTY January 27, 2009
 
4.
" Sleeping with the fishes"

Meaning that someone is dead.
:hey where is sonny?
:He's swtf !
by Glawar September 20, 2007
 
5.
Slut what the fuck

Said when what the fuck just isn't enough.
Girl:I fucked your best friend.
Guy:SWTF
by SunnyfuckingSadie February 24, 2010