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"

by ravix84 January 24, 2015

h/u

Hook up, meaning have sex or make out.

Emily and Beth h/u at the party, lesbiens are so hot!

by Emily May 13, 2004

H Stay

When you invite a girl to town for the weekend and get an Air BnB but tell her it’s your house because you live with your parents

Bro, I pulled an H Stay last weekend. She had no idea it wasn’t my home, I told her the family pictures on the walls were my cousins.

by Hk1234 February 10, 2020

Mel H

Amazing. Beautiful, stunning blue eyes, and olive skin.This is a person easy to love and spend all your time with.Mel is a little corky or different from others, which makes her all the more special. Anyone one that knows a Mel feels lucky to know her. Mel's have a raging obsession with turtles.

person 1: "Did you see that girl? She was just so...wow!"
person 2: "I know right shes such a Mel H

by COOOOOOOOO June 21, 2011

H constant

The H constant is a scientific constant that constantly changes.

The H constant changes from 5725472927.68727181 to 681728.67 last night.

by Hashi February 23, 2020

Ho$h

This is a word used by a South African Gang known as the 26's and 27's as a way to identify and greet each other, this could could also be used as a form of approval within the gang. This has been since 1818.

"Ho$h, ziyagcwala? "

by KrugerthaRobbery October 20, 2019

TP-H

TP-H is ThioPhenyl Hydride or Thiophene. It's commonly used in synthesis of TP-Br (Thiophenyl Bromide), TP-MeCl (Thiophenyl Methyl Chloride), and TP2P (ThioPhenyl-2-Propanone).

Tony: I synthesized TP-Br by brominating TP-H in Carbon Tetrachloride.

by CognitiveFuel August 10, 2023