Stands for US Robotics, a company based in Schaumburg, Illinois and founded in 1976, that makes computer modems and related technologies.
by kingmustard May 3, 2005
Get the USRmug. A stupid dumb bitch. Also a fat ass
by Aida Bugg June 10, 2020
Get the usrmug. Usr is a dumb person
by Aida Bugg June 10, 2020
Get the Usrmug. She/he is a Usr
by Imelemenkahanko June 4, 2020
Get the Usrmug. 

