ONS

ONS is an abbreviation for "Over Night Studying", SON can also be used in some occasions. It is an action held by most, if not all, petroleum engineering students. It has been well known through out time, that this habit is to be practiced before major exams, and even quizes. According to new Petroleum engineering students, ONS is a sacred retual, that every -successful to be- engineer should experience!

"Normal student Helal" : Ughh, Got a midterm tomorrow, ONS :D ??

2 years later..

"ADMA executive manager HaLool :3" : SON was worth it alright :3!

by Hallulz November 22, 2010

Ons

Overactive neck syndrome

My friend has the ons very badly

by Leon1738 February 16, 2017

Ons

An acronym for Owari No Seraph (seraph of the end). An anime about an abused gay sexy blonde vampire, trying to rescue his King of salt from the humans experiments.

Have you finished ons yet?
Yes, and I'm dead now. Ferid is a dick.

by Yoi1999 October 26, 2017

Ons

On Satan. Instead of saying On god you say On satan.

Me: "Yo her ass thick asf"
Bro: "Ons bro"

by Alissa Sham April 9, 2021

ONS

ons is short for "on soul". basically another way of saying on god or on me.

"she is always starting shit."
"ons"

by hyolynsqueendom May 24, 2022

Ons

On soul

Others: ons he is (on soul)

by K.2slickk June 15, 2022

Ons

Ons means on soul

“Ons she lying nigga”

by Braceface_E March 1, 2023