This term is used to describe a person who instinctively butts into a conversation without real thought and blurs out an obviously untrue response just for attention.
Jamie: "Hey Kieran, sorry to hear about your tongue"

Kieran: "Thanks, there I was skipping along and I just bit my tongue and now it's bleeding."

Robyn: "Hey did you guys say something about a tongue? I once bit my tongue off and it grew back in 2 days!"

Jamie: "Sure it did..."

Kieran: "Oh leave her alone, you know she's a subconscious attention seeker and will say anything to look cool"

Jamie: "Fair play"
by Urbansfinestdude June 12, 2010
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