A portmanteau of "yes" and "please." Used as a quicker, informal way of saying "yes, please."
Marcus: "Can I get you a beer?"
Advice reserved solely for uncomfortable social situations, for which there is no just solution. These predicaments often leave people desperately seeking advice from good friends, leaving them on an island of solitude, with only this one single syllable to grab onto.
P1: "Man, I just met this cute girl three days ago and took her to this bar to meet all my friends. We hit it off really well, but now she's getting mugged at the jukebox by Quayle"