Top Definition
The small uncircumsized penis on a person. Namely one of Spanish or Latin decent. But can be used for any male typically a Mexican that is not legal.
Hey Janet how was last night with Francisco?

Ennhhh not soo good the guy has a beaner weiner.

Ohh sorry at least he looks good in a cowboy hat and oversized belt buckle
by Jahn mccool February 27, 2010
An effect felt after consuming mdma tablets (ecstasy). One becomes sexually aroused but cannot achieve an erection.
Swim: Last night I had these two ho's butt ass naked in my bed!
Swim's Friend: So you had an epic threesome right?
Swim: Nope... got beaner weiner. I was rolling too hard. It ended there :(
by rollingballs July 02, 2013
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