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1.
the place where the techies do their work. Also the place where the techs go to make out with their girlfriends. No actors, freshmen or lame people are allowed in the booth. The techs are very territorial about their booth and will yell at actors if they find them in there. Some techs are stricter about the rules of the sound booth than others.
Sulaiman normally lets me hang out in the sound booth, but he kicks me out when the other techies come in.

Bill and Olivia are making out in the sound booth.
by rainchecker March 03, 2011
 
2.
A word in an extensive vocabulary of theatre terms standing in for sexual terms meaning mouth.
Put my actor in your soundbooth... please..
by SamMacElParker December 07, 2009