Unlike the traditional use of the word loose, loose behaviour is a versatile word that can be used to describe someone that is a shady character, also it is a good or bad response from a person depending on the circumstances and actions involved.
1 - throwing the phone off the third story balcony at a hotel was loose behavior.

2 - You were so wasted last night your behavior was loose.

3 - Drinking underage in a manner that gets you and your friends arested.
by Briscoe May 25, 2005
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