Need an insult? Glee's Sue Sylvester can help! In this video guide, the ruthless cheerleading coach trains us to defeat our enemies with put-downs that sting. We rounded up clips of her most outrageous comebacks and learned it's best to hone in on one unfortunate quality of your opponent (such as Mr. Schuester's hair), to avoid clichés, and when in doubt, just deadpan everything. Watch the Sue highlight reel now and see how we're using her skills around Sugar HQ. And tune in tonight to catch the show's season finale!