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S.I.L.F. 

1. a Sister I'd Love to Fuck

2. the name for a person's hot sister that you would take pleasure in having sex with.
Bob's sister Allison is a total S.I.L.F.
S.I.L.F. by Joseph Drank June 30, 2006

S.I.L.F. 

Super
Invested
Lunar and Rat
Fan
Hey look! Raiids is a S.I.L.F.!
S.I.L.F. by A Random a Guy November 5, 2021
Sheep I'd Like to Fuck sheep shagger} - A common welshism/bristolian term, often quoted whilst at the local farmers market.
'Cooor, that there Black Mountains a bee-uty!'

'Aye, she's a right S.I.L.F'
S.I.L.F by PoL, Gas, Cymraeg. July 3, 2008
SILf means spongebob i´d like to fuck S.I.L.F
S.I.L.F by BJENNETJE September 22, 2021

S.L.I.L.F.

Jill Biden.
Man, that Jill Biden is a S.L.I.L.F.
S.L.I.L.F. by nirad January 21, 2009

S.M.I.L.F 

A Sheeps mother I'd like to fuck. S.M.I.L.F
Arghhh, I saw Welshy's sheeps mom, I'd love to fuck that now!

What a sexy S.M.I.L.F she is!
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
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