Yes, gyp is a Scrabble word!
...and is worth 9 points in Scrabble, and 10 points in Words with Friends
gyp
Verb
1. Deprive of by deceit
Noun
1. A swindle in which you cheat at gambling or persuade a person to buy worthless property
Verb
1. Deprive of by deceit
Noun
1. A swindle in which you cheat at gambling or persuade a person to buy worthless property