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The nick name given to an Instrumentation Technician. The term Tiffy is derived from the Royal Navy designated tradesmanship "Instrument Artificer" Artificer later replaced with the term Technician in Petro-Chemical, Pharmaceutical and Oil & Gas Exploration and Production industries.

A group of Instrument techs are commonly referred to as Tiffy's" or "Tiffies".
Operations supervisor askes the Maintenance Supervisor... "Can you arrange for a tiffy to inspect the pressure reading instruments on the reactor column? They appear to be indicating incorrectly.
Tiffy by YZF1070 January 3, 2019
Related Words
The universe's size make astrological science extremely tifty.
Tifty by Smarthalf July 1, 2014

Tiffy Makes Me Stiffy

when Tiffany makes your dick hard
Person 1 : TIFFY MAKES ME STIFFY HUH
Person 2: ikr she is so hot
Tiffy Makes Me Stiffy by ItsPromo December 6, 2018

tiffy ching 

A 'tiffy ching' is someone or can describe something which is the epitome of extreme coolness, taste and wow factor.

It can also mean the word "love"
I love your outfit! It's soooo tiffy ching!

Her taste in food is very tiffy ching

I tiffy ching my life!
tiffy ching by ricebowl2010 October 5, 2010
An adjective describing a person who has “opp tendencies
Ben don’t be all tiffy with me today. Loosen up.
Tiffy by Gt3WithAnMp5 November 10, 2022
TFTFY stands for "There, Fixed That For You."
Person 1: Good grief. Why don't O'Reilly & Olbermann just whip out their dicks & have a big, gay swordfight and get it over with?
Person 2: I'm for that, it would be a ratings winner.
Person 3: >ratings wiener. TFTFY
TFTFY by sirlame.com March 2, 2009