Any breed of large, mean looking dog such as an American Bulldog, Pitbull, Staffordshire Terrier, etc. These dogs are known for brute strength and tough looking appearance, however they are really just loveable little goofs.
The pinnacle of being a blonde; a girl with no clue; oftentimes nieve (though sometimes in an endearing way); a person who likes bad basketball teams, any girl named Katie.
Yep, her name's Katie...she must be a doofus.
She just picked UNC to win at basketball, she must be a doofus.
That girl just dyed her hair blonde, as if we didn't already know she's a doofus.