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1 definition by Matthec7

The look depicted on one's face, which resembles that of a trout, often caused involuntarily, due the contortion and spasm of their facial muscles after ingesting large quantities of MDMA, also known as gak or ecstacy.
"Gee Patty, just have a look at Maud's face, she looks as though she had fun out on the gak last night because she is seriously trouting!!"
by Matthec7 January 15, 2009