to blow it in a big way or to make an obviously avoidable mistake
(originating from the Bob Newhart Show, "Hi, I'm Larry, this is my brother Darryl, and this is my other brother Darryl.")

They have a xbox 1 but aren't good at it

The equivalent yet opposite of the wet willy, it is when the finger is inserted dry into the ear.

When a guy has long hair and lets his missus peg him so she can see why he likes hitting it from behind.

when girls wear cut off jean shorts they are called daisy dukes
when guys wear cut off jean shorts they are called darryl dukes

The pouch on the breast of a shirt.

A pseudonym for one who is a douche bag.