on-the-side

a) someone's sidekick

b) an offensive term for someone's mistress or lover

If you want an on-the-side definition b), don't be in a classical ltr; look for an open relationship instead.

by Sexydimma June 5, 2015

on-the-side

a) humorous, someone's sidekick

b) (very offensive): someone's mistress or lover.

I'd rather have an on-the-side definition a) than an on-the-side definition b)

by Sexydimma December 8, 2014

on-the-side

a) someone's sidekick
b) an offensive term for someone's mistress or lover

If you want an on-the-side definition b), don't be in a classical ltr; look for an open relationship instead.

by Sexydimma March 6, 2015

on the side

Having an extra sex partner. Having sex with a friend as in friend with benefits while in a relationship with someone else.

I like fucking him on the side, just like I like ordering my salad dressing on the side.

by Frisco Stories October 8, 2008

on the side

Having a sexual relationship with a person outside of one's primary, emotional relationship.

See, mistress.

"Hey man, I heard you were getting a little action on the side! Did you nail her?"

by Nathan V. October 1, 2008

On the side

weekend, the days on the sides of a calendar i.e. Saturday and Sunday.

Person 1: Hey what're you doing on the side?
Person 2: I'm going to Lake Taho with Matta dn Jess.

by Nikkola March 6, 2005

on the side

Gay, opposite of being straight.

That dude wearing the tight nipple shirt is on the side.

by mattoincapace October 24, 2005