by Isaiah Groshong January 24, 2008
 Get the fastballmug.
Get the fastballmug. by cclark March 15, 2007
 Get the fastballmug.
Get the fastballmug. by Pat the Rat February 24, 2009
 Get the Fastballmug.
Get the Fastballmug. When you shoot fecal matter out of your rectum with velocity causing a stain on the back of the toilet; usually when you have to go real bad
by PerkWitaK October 6, 2017
 Get the Fastballmug.
Get the Fastballmug. by El Toro Grande September 15, 2004
 Get the Fastballmug.
Get the Fastballmug. Ready for my next #fastball, world? PLAN BETTER Applies to everything where an excuse now sits. Try it. U won't be wrong. Ever. #PlanBetter
by sheener55 April 16, 2011
 Get the Fastballmug.
Get the Fastballmug. Fastest pitch in baseball. There are several varieties, such as the 4-seam, 2-seam, cutter, and split.
by Rodney Basil October 3, 2003
 Get the Fastballmug.
Get the Fastballmug.