Heron is a street slang for the drug heroin.

Also known as Dope, smack, brown, boi, tar, black tar heroin
Once you do heroin once you’re gonna be addicted and using it from heron out!
by Iggypiggy June 20, 2021
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a person that behaves like a heron
Mandy, have you met the new colleague yet?
How can you be a heron like this?
by TinderAndy April 24, 2017
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One guy wrote a formula for finding the area of a triangle that can be applied if you know the length of the sides, and knowing the semi-perimeter (half the value of the perimeter).
The formula is : √s(s - a)(s - b)(s - c)
guy : help me I don't know the height of the triangle to find the area.
smart guy : use the heron's formula
guy : imma search it up
guy : thx i got answer as 42cm^2
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