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2.
1605 was INVENTED by the group Kottonmouth Kings(buy one of their cd's, they kick ass). it means "do whatever you want and dont let anything get in your way"
1605 forever baby
by Ritcher October 18, 2003
 
1.
1605 is the numerical part of the address of the house where the KMK (Kottonmouth Kings) first came together and became the driving force in underground music that they are today.
1605, where the homies reside....
by KMKween_4_life March 16, 2005