Darlton's codename for the third season finale of LOST. They likened this finale to when you get home and open your mailbox and you're like "WHOA!!" because there's a snake in it.
by Simon of the Desert June 10, 2007
 Get the snake in the mailboxmug.
Get the snake in the mailboxmug.  Get the snake in the mailboxmug.
Get the snake in the mailboxmug.