confusion

[nightmare]

This one seems to flummox most people.

Two gay cowboys.
The first says "Yup ?"
The second replies "Yup"

The question mark helps when you see the joke in writing.

[catcuddler]

hehe he he he i like it

[alijangra]

I think i get it!

[RATTER15]

clever lol!!

[Potatoman]

I dont understand that...! Ill consider myself flummoxed! lol

[nightmare]

Potatoman

OK ,let me explain.

The first "Yup" is a question - a contraction of "Are you up ?"
The second is an affirmative reply.

Understand now ?

[Potatoman]

Ah, i seeee!
Very good!