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.
by YZF1070 January 4, 2019
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An adjective describing a person who has “opp tendencies
Ben don’t be all tiffy with me today. Loosen up.
by Gt3WithAnMp5 November 10, 2022
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"It's tea and tiffy time." or "Is that a tiffy you're smoking?"
by AliceDD September 10, 2012
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That bum that attacked Mark was totally tiffy.
by Gappy May 15, 2007
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When a man gets a hard on by looking at a girl's titties.
I got a tiffi her boobs we're so big.
by Bear816 March 31, 2018
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touchy-feely, touching people when you talk(adj.)
I wouldn't talk to him he's really tiffy.
by Kelsee Jean October 29, 2008
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A fashion sleeve for your arm to turn a short sleeve shirt into a long sleeve shirt in LESS than a snap! Available in 11 colors to be worn with a variety of sleeved shirts, sleeveless shirts, dresses and tops. Created and trademarked by Tiffie, LLC. Originof the name is from the name Tiffany (theophane) or Epiphany. Tiffie, LLC is an Apparrel Accessory Company based in Texas with products made only in the USA.
Tiffie Sleeve
by Tiffany Hurd March 31, 2011
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