Girl 1: Har Har, thats cool.
Dude 1: No seriously, come play beer pong.
Girl 1: Okay, I'm so intrigued by your bluntness and ability to not waste my time by telling me straight up how good your game really is. I will play beer pong with you and perhaps let you touch my boob later tonight.
Tip: This term is often most effective when used in coordination with "I'm hung like a hamster." See: Hung Like a Hamster here on Urban Dictionary.