IWTF 

I Want to Fuck

instant messaging like bbm,whatsapp etc.

I am so horny. IWTF!

or

Man i have not been laid in so long IWTF!

IWTF by Badtastebear December 8, 2011

IWTF 

IWTF = i want to fap (masturbate)

example of thread of 4chan : IWTF thread !! *show a pregnant woman*

IWTF by Bob-Alexandre 'Boshy' Goldon September 8, 2016

iwtfushucw 

I want to fuck you so hard you can't walk

Hey babe iwtfushucw

iwtfushucw by Poop man monster June 21, 2022

Iwtfd

I Want To Fucking Die

Emo people or goths will say Iwtfd

Iwtfd by Fuckoffbitch500000001155 October 26, 2011

iwtfu 

I want to fuck you

If you want to fuck a girl or guy you text her or him iwtfu

iwtfu by mrseeden December 24, 2008

IWTFYS 

I want to fuck you senseless

Person 1: IWTFYS
Person 2: allright, see you at my place

IWTFYS by The JasP September 11, 2011

IWTFYLA 

Short for "I want to fuck you like an animal". The term is derrived from the song Closer by Nine Inch Nails

1. I seriously want to fuck you like an animal.

2. HawtGurl21: Hey....
Dumbhuy121: IWTFYLA
HAwtGurl21: Ok..... Say hello to Mr. and Mrs. Block.

IWTFYLA by 9987521 September 19, 2006