Since I didn't hear any for Warlocks, here are a couple:
Your a witch, I'm a warlock, maybe we should use our pacts of the chains together?
Yeah, I'm a warlock, and full of fiendish vigor.
Baby, you can be my life drinker anytime!
I see a warlock must have made you, because your body was made by a sculptor of flesh.
Yep, my eldritch spear can reach 300 feet. Wanna see it in action?