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3.
2 blunts stuck together packed with weed,a double lengthed blunt

I rolled up a fat extendo last nite
by Mike Schill April 22, 2003
 
1.
An intermediate-force weapon for law enforcement and security professionals, used to gain control over assaultive subjects. The baton is a cylindrical shaft that contains telescoping metal pieces that lock into each other when expanded. When swung, the extended baton can deal massive damage due to the kinetic energy emitted from its solid metal tip upon striking a surface. Most strikes are done on large muscle areas of the subject in order to avoid permanent injury. Expandable batons come in various sizes, including 16, 21, 26, and 31 inch when extended. Synonyms: telescope baton, extendable baton
Those fools tried to rush me until I pulled out my extendo and put them to a dirt nap
by dontworry February 13, 2006
 
2.
kind of like a nightstick. its a handle that extends a heavy metal bar with the flick of your wrist.
i cracked this mans skull open when i hit him with my extendo
by a man with an extendo September 26, 2005