Narf has also been used in the movie,
"Lady In The Water"
Natalie's Friend: "I don't know." (always leaves things up to Natalie)
Natalie: *Sigh* Narf!
2.A) Slang for throw up
2.B) Slang for the action of throwing up
2.A) ughhh...disgusting..look at that narf....yuck!
2.B) Oh Gross... He narfed all over the pillows!