by Sabe 1 March 09, 2005
too much metal for one hand. done by putting hands in fists, putting them together (like the m's) and sticking up both your pinkies
by straemer August 24, 2006
\mm/ is simply an online synonym/abbreviation to represent history's crunchiest, grooviest, funniest bunch in the 21st century of rock n' roll - Umphrey's McGee. The two "slashes" encasing the two "m's" are simply representative of our pinkies, and each "m" a set of 3 knuckles. This is a symbol used at shows and as logos for the band, making a giant U ... Or if you look closer, a GIaNT rock n' roll hand gesture.
by bizurketurkey August 03, 2015