What's on your mug?

Impatient and intolerant person.

"He doesn't wait, he doesn't queue, he doesn't take detours, he doesn't take second opinions and he doesn't take no for an answer; he's a Glenn."

By The OED

A Glenn is a common Irish denominator who has no life and future in front of them.

Oh look, it's a Glenn! I bet you he is gay.

By alpaka34

the cutest and kindest guy you will ever meet, you would be lucky to date him but he already has a girl. He's also a oso de peluche

Girl: wow ken, i wish you were a glenn boy: *dies*

By musicgoddess21

a short, mean spirited pessimistic man who is extremely abrasive.

Everybody was in good spirits at work until a Glenn showed up.

By turdtsunami

A poop. Often used when referring to a dog's poop, but is just as effective when talking about anyone's poop.

Watch out, Max took a Glenn behind the patio.

By MColbo