1) {Mega Bong} Any epicly-large, likely homemade, smoking device.

2) {Megabong} A huge bong made out of a gallon-sized pickle jar, garden hose, pipe, and a small flower pot as a bowl. Capable of single-handedly getting an entire party stoned to the bajesus. Also see Megabong Challenge.
"Lets make a mega bong today"

"Bust out Megabong, lets show these kids how it's done"
by illegallydead March 16, 2010
Get the Megabong mug.