A noun meaning to urinate and flatulate simultaneously.  The meaning is derived from the Fleetwood Mac song "Dreams", in which Stevie Nicks sings, "Thunder only happens when it's raining"  Nicknames include: "Fleetwood" or "Stevie Nicks".
by Tony Massachusetts October 22, 2008
 Get the Fleetwood Macmug.
Get the Fleetwood Macmug. by JS via CP September 10, 2006
 Get the mac and cheesemug.
Get the mac and cheesemug. by iQuack March 31, 2008
 Get the mac daddymug.
Get the mac daddymug. by ihgjkhhklhlkkl January 27, 2007
 Get the young macmug.
Get the young macmug. White guy, with big ears, little penis, never gets any, and wears a cool leg sleeve on his leg like T-Mac
by Dev January 30, 2005
 Get the P-Macmug.
Get the P-Macmug. by Rookieregueira January 13, 2015
 Get the Mac and cheesemug.
Get the Mac and cheesemug. by Greg August 26, 2004
 Get the easy macmug.
Get the easy macmug.