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2 definitions by Mustang Ed

 
1.
Fast friends meaning loyal friends, close friends, permanent friends.
John and I have been fast friends since we met in the 4th grade.
by Mustang Ed October 01, 2011
 
2.
Fast is used as an adjective meaning 'close', 'strong', 'loyal', 'permanent'.
Fast colors meaning resistant to fading. Fast friends meaning loyal friends, close friends, permanent friends.

John and I have been fast friends since we met in the 4th grade.
by Mustang Ed October 01, 2011