WTF, when it comes to chatlogs, usually stands for 'What The %$^$', and is usually said when the chatter is confused, upset, or angry.
example 1: WTF is that??? ex.2: WTF is wrong with you?!
when your tunes come on and you like:
what the funk this is
y ̛̛̥̞̾̏̀̅͐͒̐͋e̶̛͉̩̊̐̍̈͝͠s̵̡̻̗̼̼͚͔̦͚͒t̴̨̯̜͓̻͉̾̽̈́͋͜
wtf t̴̨̯̜͓̻͉̝̫̙̾̽̈́͋͜ḧ̴̩́͑̆̇͌̾͆̆̈́͝i̶̢̙̳̙̖̐͌̈͂̓͂s̶̯̹̺͛̒͋̐ ̹͉̼̰̍͂̀̈́̿̏̚i̶̯̐͌̀s ̮͙̲̥͎͍̈́̂̐̽̽ ̪̰͍̼̭͓̅̓͗̈́̎̋̈͒̉͝m̶̲̙̝̠̮̞̘̖̒̅̾y ̫̦̣̠͇͆̔̈́̿͒́ ̴̙̯̬̩̻̝̄͋̂͗̽̐j ͙̹̤̞͎̟̭̣̲͗̒̅ͅa ̧͚̭͕͕̭̏̋̆͛̃͌͐̈m̶̙͒̃͋͑̅̀͛̚
wtf = want to fuck?
Nissim: wtf
Audrey: nty, i’m not interested
commonly used as a way of saying what the fuck and world taekwondo federation, another also common meaning is "whats this foolishness!"
Jen- Dude i heard Keighley is going back out with Jeff!
Sarah- No effin way! wtf! i thought they'd be done after last time!
Jen- ikr? my words exactally...