1. Short for this for that.
2. To scratch each other's backs.
3. To trade services.

Maryann helps here friend Becky with Becky's homework.
Becky is now obligated to help Maryann with something she needs under the "tit for tat" rule.
In the movie HEAT:
Al Pacino: "I do for you, you do for me."

How about I give you a discount if you help me move out of my house? Tit for tat?
by Lightboxes April 4, 2008
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To show one's tits in exchange for seeing another's tats
Brie wanted to see my eagle tattoo, so I demanded tit for tat.

I got the better end of the deal.
by Cobra McLarge August 12, 2011
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A term made famous in a Jane Russell movie where she stands large- breasted between two cowboys. One cowboy says "You stole my horse so I stole your girl." The other cowboy answers "Yeah, tit for tat."
"I cut your grass and you wash my car, you know, "tit for tat"."
by teetiger September 2, 2008
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When a woman's tit is seen accidentally by a man, it is only right that the man show his "package" to her as well.
And if you're lucky, it may lead to something else..

Also works vice versa.
Sue: You've seen my tit. It's time to show me some tat. *wink*
Sam: Tit for tat.. I should have known.
by hermandude September 28, 2007
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a very popular way for females into tatooing them selves to pay for said tatoos. this method usualy works considering any tatoo artist, male or female is more then happy to get a little tit in exchange for a little tat'.
wow shelly, thats a totaly fantastic tatoo of a flaming multi colered jesus on your butt. how did you pay for it though?
shelly: well, I asked and it turns out the tatoo artist beleived in tit for tat.
by the rose colered night sky October 18, 2008
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A special day of the year when tattoo parlors will give free tattoos to women if they flash their tits.
Women: "Hey, I'm here for that free tattoo"
Tattooer: "Only if you show your tits, today is Tit for Tat day."
by Mikey Mike Official December 13, 2018
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The practice of a female’s either showing a man “The Merchandise” or letting him feel her up in exchange for his assistance. Often mentioned in the case of a normally-modest/celibate female who does not want to expose herself but feels that she may have no choice at the time because she really needs the male’s immediate help but possesses no money or other "acceptable" way to presume to expect said male to exert himself on her behalf.
Roomie #1: Yo! It's eleven p.m., Girl! Where ya been?
Roomie # 2: Oh, had a flat tire, hunny, 'way out in the boonies! Lucky for me that country boy stopped by on his ATV and changed it for me!
Roomie #1: He did it for FREE?!?? You told me you were outta foldin' money.
Roomie # 2: Yeah, I know --- hadda give him a little tit-for-tat first.
by QuacksO November 26, 2011
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