| Idiom | Meaning | Example | 
| turn you on | 
arouse you, cause you  to feel excited
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"What turns you on?" "Good books and nice girls."
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| turn your back on | 
turn away from, reject, turncoat
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When he became president, he turned his back on his friends.
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| turn your crank | 
interest you, inspire you
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Classical music turns his crank. He likes the great symphonies.
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| turn your stomach | 
make you feel sick, cause you to feel ill
 | 
Watching you eat those oysters turns my stomach. Yuk!
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| turn yourself in | 
walk into a police station to tell them what you did, own up
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If you tell your counselor about the shooting, he'll advise you to turn yourself in.
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| turncoat | 
one who goes to work/fight/play for the opposing side, traitor
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That turncoat! He went to work for the competition - Sears.
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| turning point | 
(See the turning point)
 | 
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| turnout | 
the number of people, the size of the group
 | 
There was a good turnout at the Writers' Club today: 20 people.
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| tweak | 
increase the power, hop up, supercharge
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If we tweak the engine in this old Cortina, we'll have a sports car.
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| twerp | 
small child or person, knee high to a grass... 
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Ricky is just a twerp. He can ride on Grandpa's knee.
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