The Tenderloin (aka The 'Loin or T.L) is a relatively small neighborhood located in downtown San Francisco, CA. Its borders are roughly the triangle made by Geary Blvd, Market St and Van Ness Ave. Some consider the Civic Center and Union Square to be a part of the Tenderloin.

Although the origin of its name is up for debate, no one denies this neighborhood is one of the most dangerous in the City, mainly known for problems like excessive drugs, prostitution, and a high number of homeless people. It's also one of the most dirty and grimy areas of San Francisco. It's highly recommended that visitors to this area exercise their street smarts and stay aware of their surroundings. If you look like a victim in the 'Loin, you'll probably be one. It's no wonder why there's a special police unit just for the Tenderloin.

The Tenderloin has some good things going for it too, however. It's home to some of the best ethnic restaurants in San Francisco, theaters, and hotels. It's also one of the most affordable areas of San Francisco.

aka, the TL. ass smellin area in downtown san francisco where all the creeps, skizzers, hoes, crack heads, transients and just plain fucked up people congregate, starting at geary , it gets seedier the closer you go south towards market and van ness

Loins that are tender, also a comedy troupe that are famous for starring in Impractical Jokers.

An elaborate act of sexual intimacy involving the woman traveling to the grocery store and purchasing the largest filet mignon. The filet is then brought home, sautéed in wine: cooked rare so the center is warm but not hot. A pocket is then cut into the filet; large enough to accommodate the male partner's penis. The woman then uses the filet to masturbate their male partner until he ejaculates inside of it.

The woman then enjoys the filet for dinner with a glass of merlot.

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When someone says something and you don't want to answer them properly

When you fart out of your vagina so much that your loins become tender and irritated.

A lewd description for sexual intercourse taken from a popular fast food sandwich.

To Evaporate your Tenderloin is to beat your dick so fucking hard your meat (a.k.a Tenderloin) disappears(evaporates) into nothingness.