1 definition by Helluva Nengineer

Top Definition
A woman whose thighs are so powerful she can crush granite between them. It's so sexy! It can happen to women who march.
The most physically attractive person in the GT Marching band, Thunder Thighs, is really Catherine S., the flautist, who graduated in '08.
by Helluva Nengineer October 14, 2008

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