While drunk, you phone someone you can't talk to sober (because of bad past-times or because you haven't got the balls) and talk nonsense to them until they either put the phone down, or agree to have sex with you.
1. "Dude, I am so wasted after drinking that whole crate"
2. "I know man, what can we do now?"
3. "Dude, let's do some Drunk Phoning!
4. "YEAH!, Lets call your mum"