Top definition
A comprehensive tome of reference and learning on how to be manly. For some, manliness doesn't always come naturally, and the Mansaurus is an essential guide on how to behave in a manly fashion, use manly words spoken in a deep manly voice, and use one's body language to show how manly one is. Many famous manly celebrities allegedly have a copy tucked away including Chuck Norris, Daniel Craig, Russell Crowe, Madonna, Pink, and Fergie from the Black Eyed Peas.
"Daa, I knew I was in love with her da moment I saw her Mansaurus fall out of her manbag as she lifted her leg to fart"
- Sylvester Stallone reflecting on his marriage to Brigitte Nielsen
by aaaaajon January 01, 2012
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