A person, place, or thing that fills you with a sense of malaise, or completely underwhelmed.
I'm so sick of online dating. I think I'm calling that site my Meh-th dealer from now on.
by Ephemily February 27, 2012
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small piece of skin between your balls and your ass hole,:Is not you balls or your ass hole so it your th-ain't
I jumped out of the airplane opened my parachute and landed on a fence pole and injured my th-ain't, one inch more and my balls whould be dangling from the fence.
by donald doyle January 20, 2004
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to give oral sex
to perform on the penis orally as if holding a microphone
she can really sing on th mic
her singing on th mic is a platinum performance
by doitall4ya October 14, 2007
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The way a man walks after he is ass raped by a close friend that is a little bi-curious.
I told Kenny not to hang around Alvin or he would get Th Dutton Walk.
by Rob Aldridge February 26, 2007
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a hispanic gang on the 18'th street of east L.A.
my whole familly is 18'th street vato's
by gregory sanchez February 28, 2005
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Often used in the military, especially basic training. Used to describe an individual who suffers from the inability to properly "man the fuck up" and get through a difficult or trying task.
Drill Sergeant - "Alright you little poster boys for abortion, get your gear and get outside right fucking now. And if I hear a single one of you suffering from THS I will personally beat you until your tiny little fucking heart stops."

"Did you see George cry his way out of finishing work today. Said his head hurt to much to continue on. I'm tired of him never finishing a single thing."

"That prick is a chronic case of THS (Tiny Heart Syndrome)."
by FiveFire November 06, 2009
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