"Becks, what are you on about?"
"Oh, I'm thinking of all the words I want to use for the Becks Slanguage Dictionary!"
"...You, you are a deepfried douchenozzle."
"HEY! I like that. I'm stealing it."
Can also mean a made-up slang word that no one understands.
Person 2: How was it sick? I find nothing sick with what I just did...
Person 1: No... "sick" can also mean "cool." Don't be so technical, and learn some slanguage, man!
Person 1: That was spawecoolerificness!
Person 2: Shut up with your made-up slanguage, idiot!