When a
guy confidently claims to know something, but in
reality, he's just making wild stabs in the dark.
Often used to win arguments or to seem smart to impress the
girls.
Tina: "
Will we
hit traffic on the way there?"
Bob: "No way, it'll be a smooth ride."
*Stuck in traffic for hours*
Tina: "Bob's
guy guessing got us again!"