the inherited instinct to nod your head at people; if you know them or not, and it takes no thought process for initiation or to respond. mostly like predominate in caucasian males, but stretches every ethnic back round in the united states. IRN for short. it's a non verbal way to say i see you there, or to recognize what is going on in a particular environment.
bicyclist and driver give a impulsive recognition nod at one another as to agree not to collide with one another.
male friend see's another male friend having a conversation with a female and gives the impulsive recognition nod as to non verbally communicate a variety of things such as; leave me alone, find your own ride home tonight, yes am trying to have sex with this individual, good luck etc.
you catch a person looking at you and that individual gives a impulsive recognition nod, and nod back but don't know why. this prevents any unnecessary altercation due to the IRN
male friend see's another male friend having a conversation with a female and gives the impulsive recognition nod as to non verbally communicate a variety of things such as; leave me alone, find your own ride home tonight, yes am trying to have sex with this individual, good luck etc.
you catch a person looking at you and that individual gives a impulsive recognition nod, and nod back but don't know why. this prevents any unnecessary altercation due to the IRN
by Fainezilla April 30, 2011
Variant of "run a train", which refers to a line of men each successively having sex with the object upon which the train is run. Used in this sense in the engineering world, where signal processing (dealing extensively with the impulse train) can be extremely complicated and confusing, and such material is said to thus "run an impulse train" on the student/engineer.
by Crusting Beaver November 11, 2010
The sudden, often irresistible urge to do something incredibly stupid.
Because third nipples are so weird and unnatural, they cause people who have them to do weird and unnatural things.
A good excuse for doing something weird if you do have a third nipple.
Because third nipples are so weird and unnatural, they cause people who have them to do weird and unnatural things.
A good excuse for doing something weird if you do have a third nipple.
"Jonny, WHY did you stick your foot in that glass jar?"
"Third nipple impulse! I couldn't help it!"
"Why did you walk around with it like that?!"
"THIRD NIPPLE IMPULSE!"
"Third nipple impulse! I couldn't help it!"
"Why did you walk around with it like that?!"
"THIRD NIPPLE IMPULSE!"
by Mrs. Horrible November 23, 2008
Chris: "Man, that girl is always on her phone!"
Cappie: " yeah she has a bad case of IFD- impulsive Facebook disorder"
Cappie: " yeah she has a bad case of IFD- impulsive Facebook disorder"
by CKB1116 March 02, 2017
i titled my friends essay “impulsive decisions at 4:18 am” and might have accidentally turned it in. #whoops #thatsafail
by #swaggin July 11, 2019
Failure to resist an urge or impulse. You don't give a fuck and will say anything to anybody with no filter.
by MaryinPgh October 17, 2018
The sudden feeling of pressure to deposit money back into your bank account when buying something that costs a large sum of money, otherwise known as an Impulse Buy. Can occur to many people, yet many times by college students on a restricted budget.
Wal-Mart Cashier: That'll be 42$!
Me: Gosh, that's a lot! All I have are some simple groceries. Not enough in my pocket to give you so I'll have to use my card.
*Swipe Card and transact money*
-->After finished paying, goes to SunTrust inside Wal-Mart<--
Teller: Can I help you?
Me: Yes, I just spent 42$ of my money to buy groceries, and many of those things were impulsive buys so I'm going to make an "Impulse Deposit"!
Me: Gosh, that's a lot! All I have are some simple groceries. Not enough in my pocket to give you so I'll have to use my card.
*Swipe Card and transact money*
-->After finished paying, goes to SunTrust inside Wal-Mart<--
Teller: Can I help you?
Me: Yes, I just spent 42$ of my money to buy groceries, and many of those things were impulsive buys so I'm going to make an "Impulse Deposit"!
by Matt - UCF Knight '12 September 09, 2010