Stands for "Not actual boyfriend". For a situation where the couple is between the "friends with benefits" and "official" stage. Either one or both of them are not comfortable with being called "official", yet everyone knows they are seeing each other, they are exclusive, and they do some couple-like things. They may not yet go on dates, however.
"Hey Karissa, did your nab finally decide he wants the label even though it's been 3 months?"
"Hey, what are you doing on tinder, aren't you exclusive?" -Emily
"Yeah, but like we're not REALLY dating yet..."-Karissa
"Hey, what are you doing on tinder, aren't you exclusive?" -Emily
"Yeah, but like we're not REALLY dating yet..."-Karissa
by Cucumbersdabest January 22, 2016
 Get the Nabmug.
Get the Nabmug. by Sue Nade February 8, 2008
 Get the Nabmug.
Get the Nabmug. by lollss September 22, 2014
 Get the Nabmug.
Get the Nabmug. Function (n.) - Abbreviation meaning "Negligible at Best" (the misuse of the word negligible to mean negligent in this context is deliberate). To be used when someone is being an unfavourable character, doing something unfavourable, or when someTHING is unfavourable.
by JasonFasho January 19, 2009
 Get the Nabmug.
Get the Nabmug. A talented girl who has many friends both girls and guys. She is called a "whore" most of the time for wrong choices. She likes to experiment with new ideas of love and loves to be wild and party. She is not afraid to make the first move, but then again she is not scared to punch everything out of you.
by nnn_888 March 16, 2011
 Get the Nabmug.
Get the Nabmug. by Daisy May 14, 2005
 Get the nabmug.
Get the nabmug. 