h/o 

h/o is an abbreviated way of saying "hang on."

Can I read you my story really quick?

Sure, but h/o a sec

h/o by Gyrapage May 3, 2005

H/O 

Honest Opinion. Often used on sites such as ask.fm to ask for a person's opinion of someone

Question: "H/O on Sera"
Answer: "She's a bitch"

H/O by ravix84 January 24, 2015

h/o 

Abbreviation for "highest offer"

The h/o for the painting is $250.

h/o by Oragutang August 15, 2007

h/o 

Typically used on Snapchat, it stands for many things but this type is supposed to mean “hang out”

Anybody wanna h/o later tonight?

h/o by VOIDYT May 28, 2018

h/o 

hard on

dude, don't grab my pillow. bro, i got a raging hard on, i need the h/o cover upper before your mom sees me.

h/o by mattfair June 10, 2009

h/o 

used to say hold on... or call someone a hoe

but im not gonna tell u what he said...
b/c i dont like h/o s

h/o by SassyUSMCbrat01 November 16, 2004

H/O 

.Hoodoo opretor , A Battlefield cinematic youtuber

Guy 1 : Have you seen H/O new video?
Guy 2 : Yes , Looks lit af!

H/O by Kartov93 January 23, 2017