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1.
of or having to do with Mexican culture
So Sara sent me this CD called the Mexican Institute of Sound, but I'm not sure if I'll listen to it, it sounds a little beanerish.
by Uno Yahme May 31, 2007
 
2.
To not know of a word.

Not knowing a word or mean of it.
He/she was being every beanerish at school to day.
by Frace August 13, 2006
 
3.
Not knowing what a word mean,

To ack like a beaner, or feel like a beaner

She was acting very beanerish today.
by Frace August 13, 2006