In Costa Rica, it's another way of saying "dude" or "mate". It's also another way to say "mae", which is more commonly used. Mop is newer, though, and it seems to be used more amongst potheads.
by wolverine1979 November 24, 2010
a home made pen made from an fluid applicator of some kind, i.e polish applicator, which has a spoonge-like nib and is then filled with an ink to be used for 'bombing'. It gives a drippy finish.
by MC Boonge August 14, 2003
by Cleo Flush October 02, 2011
noun (metaphoric);
An unkempt or razzy head of hair (esp. in reference to hair that is long or "big").
An unkempt or razzy head of hair (esp. in reference to hair that is long or "big").
by AimentDuLune March 14, 2009
Someone who links or references statistics or other data which contradicts their own argument. A mop will often have a preconceived notion about a particular subject and will then search for data supporting their argument online, they then fail to actually read the data and ultimately end up putting forth data that proves their own position to be false.
That flat-earth mop just linked to a photo of the Earth as seen from the International Space Station. What a fucking mop... What a stupid fucking mop that didn't even check the data he was linking to.
by DarkChocolateFreedomForce February 04, 2016
by Sikethatsnotit November 09, 2018