Two small natural holes on the lower back of the girls.
When you see the girl lower back from behind, there might be two small holes, which will fit the thumbs of the hand if you grab the girl around the waist. That will lock the thumbs from sliding on the girls back. Thumb locker will allow the person holding the girl's waist to hold her firmly.
Someone who talks mad shit online, without the intention or means to back it up in person.
I wrote a post on facebook, and a thumb thug came by talking shit.
When your boom stick booms the wrong way, and you have to stick your thumb inside the whole in your neck.
Did you see the new ak-50?
Ya right before the Kentucky thumb.
The act of shoving your thumb into an ovulating female, right at the point of orgasm.
“Gosh, I wish I was having a heavy flow. Ricky gives the best Kentucky Thumb.”
When you have a girl in doggy and you put your thumb in her ass and press hard inside.
Bro that girl last night was freaky, I gave her the Kentucky thumb and she loved it.
Pain associates in the right thumb of a gamer, This is caused by moving the thumb off one button to the next with out rolling the thumb. This is associated with most systems that have buttons in a diagonal form but the Gameboy's format is at a 40 degree angle and not a 45 degree angle. Being that the D-Pad buttons on most controllers have not changed since the NES and they are close enough so you can roll the thumb causing less stress then having to take the button on and off a button in order to do actions.
Gary: Man I found my old Gameboy in my closet!
Lance: That is great did you find any games?
Gary: Yes my old copy of pokemon gold, and link's awaking DX.
Lance: Cool how long did you play?
Gary: not long after about three gyms I got Gameboy thumb
Its when you give a thumbs-up to a word on urban dictionary.
Guy1: Hey dude go on urban dictionary, go to my word and thumbs-it-up.
Guy2: I'm thumbsing it up now.
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