Nathan 's definitions
Cowardly, weak, generally lame. Used primarily as an adjective but can also be a noun. Basically synonymous with pussy.
by Nathan June 28, 2005
Get the naphymug. by Nathan June 19, 2006
Get the lehmurmug. noun; a weakness in someone or something that is strong overall (the weakness is often, but not always, seemingly small but crucial, leading to misfortunate events)
The Brazilian soccer team's defense was its Achilles' heel in World Cup 1998. Despite having strong forwards, the team was ultimately scored upon three times by France.
by Nathan September 1, 2008
Get the Achilles' heelmug. 
An word used to display exitment when put randomly into a position in a sentence.
(for full effect word must be said quickly)
(for full effect word must be said quickly)
by Nathan June 23, 2003
Get the Chickabahmug. yop is a word that you can use to greet your close friends. also it can be used to tell someone to go away. kind of liek tellin them to f**k off but not as nasty but isn like a polite gesture
by nathan August 4, 2004
Get the yopmug.