Top Definition
when you fill a bong with milk instead of water
yes madamm this cow bong is both delicious and delectible
by dj marky math marsesist October 18, 2008
a device made of clay, ceramic, plastic tubing or PVC, glass, a two liter coke bottles, or any other man made or fabricated substance that is normally filled with MILK rather then water used to smoke fine and tasty nuggs of marijuanna with; can be of varying lengths and sizes
"yo man we should totally chill later and smoke from my cow bong"
by Mike Sanderson October 19, 2008
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