Dennis: Where'd you get that towel? I don't see any attendants around.
Frank: I borrowed it fringe style from that guy over there. I gave him a bite of my hot dog, he's letting me use his towel.

Dee: I bet you don't even have any black people here.
Pool Guy: Excuse me, ma'am, but there's an African American family right there.
Dee: Well good for you. You keep a couple token ones around. Do you parade them around like a couple dancing monkeys?

Dennis: You're born into class. It's about pedigree. It's about upbringing. It has nothing to do with your present circumstance.
Dee: See, Dennis and I were born upper class. Therefore, we currently are and will forever remain upper class. Frank, stop picking your teeth for one second and back us up here.

Mac: Bro, when you tack on mass, you sacrifice flexibility. That's just a straight up fact
Charlie: That's insane. Touch your toes.
Mac: What am I a gymnast?

You keep on using this word "jabroni" and... it's awesome.

Charlie

A good hockey wig could put this over the top, man.

Charlie

All of my instincts and my training are telling me to use this like a weapon.

Mac

Radio Host: You gotta stop cursing.
Mac: You guys can't censor me. I'm a bit of a bad ass.

Frank: Anyone want any more catfish?
Charlie: Yo dude. Definitely give me another one of those. They're delicious. And you can taste that sort of endangered tang...

Mac: Hey bro, how'd you lose your hand?
Sailor: Diabetes.
Mac: That's not much of an adventure is it? Kind of tragic.

These guys are more barnacle covered and sunburnt than Dee and Frank.

Dennis

This floaty thing is amazing. We should patent this.

Charlie

It's Always Sunny Quotes

Charlie: I'll totally pull a Good Will Hunting on those kids and that'll put them in their place.
Mac: How you gonna do that?
Charlie: Well, you've seen the movie right?
Mac: Yeah.
Charlie: So all I gotta do is, I'll ask them some big shot, like math or science, history-type college question aand that will totally stump them by knowing a lot more about the answer than they do.
Mac: In that movie, Matt Damon played a genius janitor, you're just a janitor.
Charlie: Right, you stumped me with that one.

Mac: He doesn't have any poison.
Charlie: I don't have any on me, but I do keep some in my fridge at home in the relish jar.
Frank: There's poison in that jar? I thought I was allergic to pickles. What's in the jar with the skull and crossbones?
Charlie: Well that's mayonnaise. It's a decoy.
Frank: And the mayo?
Charlie: That's shampoo.
Frank: You're telling I've been putting shampoo on my sandwiches?
Charlie: If you've been using the mayonnaise, then yeah, probably.