Top Definition
The act of compressing the breasts to the point of flatness. Either knowingly or unknowingly. The act is usually performed by wearing a sports bras at all times; even when not engaging in physical activity. It is speculated that pankaking can lead to saggy tits in later life.
I wish that girl would stop pankaking her tits.
by mcdove September 14, 2016
Rubbing someone in their sexual parts, while having a blood-filled erected Penis.(see Boner)
Joe: I pankaked my grandma.

Joan: What is wrong with you?

Rob, Halle, and Jess: (Laughing)

Kaitlyn: What's pankaking?
by Money Making Pimp January 08, 2012
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