A Walnut is a term used to mean an absolutely stunning girl reputed to be great in bed. A Walnut is usually spotted by her fantastic looks and long flowing hair.
by Joe Ginge January 12, 2009
Get the Walnutmug. 
When a man sticks his finger up his ass-hole in order to tickle his prostate, causing an instant, extreme orgasm. The prostate (looking like a walnut) is commonly used as a sex toy for vietnamese people.
by reivergirlala January 15, 2009
Get the walnuttingmug. by cgp24 December 14, 2010
Get the walnutsmug. 
Get the walnutmug. Did you see Walnuts' speech last night? You know, the one about inflation. Did he look dead to you or what?
by Iacopus October 04, 2008
Get the Walnutsmug.