Top definition
To be unprepared for a completely foreseeable situation and to respond in a way as to make the situation far worse.

Named for Michigan/NFL Wide Receiver Mario Manningham.
A: "Can you believe the teams that were going to pay me millions of dollars asked about my failed drug tests?"

B: "Yeah, I can, it makes a lot of sense for them to. What did you do?"

A: "Got all offended then lied about it"

B: "Aren't they going to check up on that?"

A: "Oh shit, probably."

B: "Nice job, Manninghaming that one."
by shake'n'bake March 09, 2009
Get the mug
Get a Manninghaming mug for your cousin Helena.