Pretty much saying "yeah right" but in a much more sarcastic way...
Intense sarcasm and making fun of someone else for saying something ridiculous or untrue.
mike: hey man, i just got with this chick last night.
jack: really? damn kid i'm glad you finally hit that.
mike: oh, we didn't actually go all the way, we just fooled around.
jack: yeah dog.
Free Daily Email
Emails are sent from email@example.com. We'll never spam you.