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 16, 2009