Tooly McBag

A loser. Scumbag. Tool.

"We were having a great time until Tooly McBag showed up."

Dimmy McWit

A nitwit. Moron.

"Dimmy McWit behind the counter over there gave me the wrong change twice in a row!"

Half-Cog

Adj. Someone who is dim-witted, especially from New England. Short for "Half-Cognitive".
Half-Cogs are so incredibly stupid, they can only relate to other Half-Cogs for any form of reasoning.

Jim: "That guy over there has been trying to put his shoes on for like 15 minutes..."

Todd: "Dude, he's wearing sandals..."

Jim: "That's what I'm saying. He's a total Half-Cog!"

Dippy McShit

A complete and hopeless dipshit. Moron. Loser.

"Dippy McShit slowed down to 25 mph in the middle lane and got stuffed by a tractor trailer."

Nimmy McRod

A Nimrod.

"Thanks to Nimmy McRod forgetting to lock the door, crackheads stole all my stuff."

Takecarredis

Showing someone something interesting in an animated manner.

“Takecarredis fleas crawlin’ on my nuts.”

Nitwit

A nimrod. Numbskull. Dolt. Intelligence level of a Nit (Louse egg).

"It's a wonder that nitwit can even breathe properly."