literally: to put in a brown bag.
most frequently in reference to
alcoholic substances (ie: 40's)
also, Young Religious Unitarian Universalists brown bag their drugs, illegal/hazardous materials during the
time they spend at conferences.
Dude, let's get that homeless
guy to buy us some
40's and sit on the
corner brown bagging 'em.
Dude, you should SO brown bag that.