1 definition by Sondre Nygård
A "bowner killer" is when you hear something awful or disgusting. Such as when a girl talks about her period, or if you see this incredibly ugly girl. It is also directly known as something that makes you have the opossite of a bowner..
It is also known as BK.
It is also known as BK.
by Sondre Nygård June 14, 2009