Purring Dog

A Purring dog is that one friend who is known for saying the most unpredictable and/or confusing sentences known to man kind without warning or fail.

Like a Purring dog, when they open their mouth, it leaves you both stunned and confused.

Group of friends: *chatting*

Dave: “you know, the north and the south poles are exactly 1 earth apart from eachother”
The group: *stunned silence*
Steve: “Dave, you are a fucking purring dog.

Or

“Don’t take Dave too seriously, he’s a bit of a purring dog”