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5.
To hold the penis of all the sexual partners involved and jack them off simultaneously. Named for the San Francisco Public Transportation System. The first publicized occurrence happened in the bathroom of a San Francisco ferry boat.
I think its appropriate to Muni, when I'm in San Fran.
by HoserHoe November 10, 2004
 
1.
San Francisco's public transportation system. Consists of bus's, trolley cars, and subway metro trains. Fast, way over crowded at times and hella cheap. ($0.35 for ppl who appear under 17)
When I hop on MUNI on stockton st, i get to stand 1 inch close to 6 chinese people, 1 smelly hobo, a business man yacking on his phone, and a crackhead.
by hamydeez October 12, 2003
 
2.
Mountain Unicycle, or mountain unicycling. A unicycle outfitted for offroad and extreme riding. or, The Act of riding a unicycle off-road.
I got a new MUni. I went for for a MUni ride. I went MUniing.
by Dylan December 25, 2002
 
3.
A dork, a twat that does something stupid
"Hey Jeff, ya munis!"
by Natashya September 17, 2007
 
4.
noun. Used to describe an officer of the former Boston Municipal Police, now known as Boston Protective Services-AKA city hall guards
John-"I almost got caught blazin by some muni behind the school yesterday."
by TheUnit March 02, 2010
 
6.
pussy, punani, crack, vagina
he licked ma muni
by loseball July 07, 2003