"It's Always Sunny in Philadelphia" Mac Is a Serial Killer (TV Episode 2007) - Charlie Day as Charlie Kelly

Charlie Kelly : Hey Frank, what guy hasn't done some extensive research on his own genitalia? Don't say you, buddy, 'cause I woke up to you doing some pretty frantic research last night, pal!

Frank Reynolds : We can go tit for tat on that one, so you better drop that subject!
Dennis Reynolds : [the gang talks about the city's serial killer as Mac suddenly walks into the bar] This guy got laid last night!

Mac : [nervously] No, I didn't!

Dennis Reynolds : Yeah, you did. You didn't come last night.

Mac : Yes, I did!

Dee Reynolds : Yeah, those are the same clothes you were wearing yesterday.

Mac : No, they aren't. They're different clothes.

Dennis Reynolds : Hey, what's with those scratches on your neck?

Mac : Scratches? What scratches? I've... I've gotta take a piss. Stop asking me questions.

[runs into the bathroom]

Dee Reynolds : Well, that was weird.

Charlie Kelly : I wonder what got into him.

Frank Reynolds : Serial killin'!
[Mac lets Charlie overhear Mac talking on the phone with a woman called Sandy, who unbeknownst to them is actually Dee disguising her voice]

Dee Reynolds : This is Mac, right? Good looking guy, great sense of humor, really bulky.

Mac : Uh, more ripped.

Charlie Kelly : Strike that.

Mac : Jacked.

Charlie Kelly : Irrelevant.

Mac : Toned.

Charlie Kelly : Exaggeration.

Mac : I work out.

Charlie Kelly : I'll allow it.

Charlie Day: Charlie Kelly