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A toelly transmitted disease (TTD), also known as toelly transmitted infection (STI) or toenailreal disease (TD), is an illness that has a significant probability of transmission between humans or animals by means of foot induced sexual contact, including toe scissoring, toeing a male / females genitals and sharing festy shoes. While in the past, these illnesses have mostly been referred to as TTDs or TD, in recent years the term toelly transmitted infection (TTI) has been preferred, as it has a broader range of meaning; a person may be infected, and may potentially infect others, without showing signs of disease. Some TTIs can also be transmitted via use of a set of nail clippers after its use by an infected person, as well as through moonwalking barefoot or standing on toilet seats. Toelly transmitted infections have been well known for hundreds of years.
I was playing footsies with Suzie during biology barefoot and the bitch gave me atheletes foot!!

I got my toe's sucked last night and the bitch is complaining I gave her a TTD! How was i supposed to know I had warts inbetween my toes, who even looks down there?
TTD by Dr. Jean Spickleberg Snr September 26, 2009
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Short for 'Through-Top Definition'.

The term applied to an appreciable level of detail of female breasts through clothing.
The presentation was a little mind-numming but I enjoyed some top notch TTD. Success :)
TTD by Milsiemillsebie April 17, 2011
Related Words
TTD TTDB TTDF ttdms TTD (tag team dumping) ttd3 TTDA TTDC TTDDIOT ttddytbn
Technological Transmitted Disease. When you get hooked into a technology and have to spread the joy to others. Considered technological herpes.
I've been using "Alexa" for a while and am completely hooked! Going to pass this TTD to my friends.
TTD by The Crafty Otter December 28, 2017
That's the dream
Man: I just took a sweet dump

Man 2: ttd man
Ttd by Jobeload January 18, 2018
TTD comes from a tik tok influencer

Till the Death,
Always finish out your set to show integrity and dignity
Today bro we going ttd, if you ain’t going ttd you ain’t training with me no more
TTD by NOFAP May 14, 2021
Ten Toes Down: Phrase commonly used by Canadian rapper NAV to describe his woman's loyalty as she never spreads her legs, meaning the toes stay on the floor.
She stays TTD
TTD by gazzatronnnnnn July 13, 2021
To The Dirt.

A reference to Ecclesiastes 3:20 "all are of the dust, and all turn to dust again."
That healthy politician railed against the covid vax and just died from covid. TTD.
TTD by anonymous January 11, 2022