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When one does not cotain the mental capibility, attention span or appreciation to pick up on the lyrics in hip hop/rap music.
Musician: hey guys let's have a music sesh and listen to Illmatic by Nas, the greatest rap album of all time it will blow your mind.

Flow deaf nation: ya man these are some pretty sick beats.

(Playing with phone and falling asleep)
by Funkyfresh11 March 05, 2010