The emotion experienced on falling asleep, when you are very tired but knowing that you don't have to rise early the next morning; a combination of relaxation, joy, and dizziness.
"Ahhh...I am feeling ooft, now...". The sentence is rarely finished, as ooft commonly ends in sleep.
From the same phrase family as 'i have', 'i would', 'i'd tap' etc.
Used when somebody is particularly impressed by something, most frequently a person. Literally means 'I have', but said in a German accent to give it that extra 'ooft!'.
"Did you see that cumslut last night? I had her a few days ago... she walked past and i was all like 'Ooft, I haff!'"
Boy sees profile picture of hxc emo hawt grrll, and comments: NO JKJKJK LOLOLOL, I HEART UR FXCKING MAKE UP OMG I LOVE UR HAIR. OOFT, I HAFF!