The act of getting a full on erection from the movie "Radio"
Paul had High Frequency when his parents, wife, children and pastor came into the room to have their weekly chili dinner.
by Yum--cake balls February 07, 2011
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Frequencies between 3 MHz and 30 MHz (3 Mega Hertz and 30 Mega Hertz). Used by governments, ships, radio stations and amateur radio operators.
I decided to use the High Frequency (HF) radio last night and try my luck at reaching Japan.
by Tomorrow's World October 20, 2009
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An idiom used to describe the moment of downturn for a previously successful enterprise/musician/actor etc. A clear, defining point which, when reached, means nothing will be the same again.

Similar to 'Jumping the Shark' or 'Nuking the Fridge'.

From Loud Reed and his wife staging a high frequency dog concert ("an inter-species social gathering").....
by Sir El of B May 28, 2010
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