not a girl 

A Boy

Thats not a girl, thats a boy

not a girl by RileyTheMilkman March 30, 2017

Sherlock is not a girl's name 

Sherlock \sh(e)-rlo-ck, sher-lock\ as a boy's name is of Old English origin, and the meaning of Sherlock is "bright hair". Literary: made famous by Arthur Conan Doyle's fictional detective Sherlock Holmes.

"Sherlock is not a girl's name" quoted the person who knows better than the person who created the Urban dictionary post Sherlock is a girls name.

Sherlock is not a girl's name by smusson June 7, 2014

Not A Girlfriend 

Usually referred to as a NAG.
Pronounced: nag
Def: the title you give the female you are in a relationship with after the dating stage, but prior to giving her the actual name of “girlfriend.” Usually this person will attend events, go to family functions and act in a girlfriendly manner but not have the title.

This word can also be used on the opposite sex as a not a boyfriend.

Eric: have you seen how much JP and Kristina are hanging out? I think he really likes her!
Kelley: No way, she wont make it out of the NAG (not a girlfriend) stage for awhile.
Eric: yeah all the benefits, but you can still be single.
Kelley: Yeah, that’s the life.

Not A Girlfriend by Bessie Lou November 6, 2009