A female's secondary male option in a relationship. The secondary guy is neither her boyfriend or husband. He is usually someone who fulfills the void in a current relationship in terms of emotional support, venting, and in some situations, sex. For the side-guy, it is not possible to rely on her love because she is always open to the possibility that there might be someone out there who can love her in a better way. Her husband or boyfriend does not know of the side-guy. The husband or boyfriend is used for the feeling of safety, stability, and security in life. At any moment the female could potentially promote the Side Guy to Husband or Boyfriend or cut tithes with the side-guy
Lisa, I am going on vacation this weekend with my side-guy Matt. Girl, you need to leave that side guy shit alone, you have a husband and kids.
by Case580 July 4, 2020

Made famous by George R.R. Martin's book "A Game of Thrones" and mainstream by the HBO adaption "Game of Thrones".
1. A prostitute or mistress.
2. A loose girl you can do anything with in utter secrecy and never have it reach the light of day.
1. A prostitute or mistress.
2. A loose girl you can do anything with in utter secrecy and never have it reach the light of day.
Samwell Tarley: "I know for a fact that some of the officers go to that brothel in Mole's town. I wouldn't doubt it. Don't you think it's a little bit unfair? Making us take our vows while they sneak off for a little Sally on the side?"
Jon Snow: "Sally on the side?"
Jon Snow: "Sally on the side?"
by Censure June 29, 2011

The act of pulling or grabbing ("tugging") on one's penis, through clothing, when excited.
Side tugging is not necessarily an expression of sexual arousal (at least, explicitly).
Side tugging is not necessarily an expression of sexual arousal (at least, explicitly).
Example 1: Shane is side tugging; he must have thought up a new moneymaking scheme.
Example 2: Whenever this girl text messages me, I start side tugging. Sometimes I even do it during class!
Example 2: Whenever this girl text messages me, I start side tugging. Sometimes I even do it during class!
by biggz_wi May 23, 2011

A girl/boy that you only be gettin at for the sex and nothing more. In public you could be acting like you don't know each other but behind closed doors shits gettin frisky on a regular.
Tyler - " yo g, I seen u with your girl leaving the club yesterday..."
Jordan - "pause, she just a side ting bro."
Jordan - "pause, she just a side ting bro."
by Gcampbell97 February 1, 2017

Him: who the hell is James
Her: that’s my cousin
The friend: you know damn well that’s your side nigga
Her: that’s my cousin
The friend: you know damn well that’s your side nigga
by Niggalations360 April 5, 2021

by kojof June 9, 2013

A woman that is one level above a jump off but always a step below the wife, wifey, girlfriend. A side bitch must know her part. She does not get holiday's, birthday's (other than her own). While he may meet your family. You will never meet his.
by class09 January 31, 2009
