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2.
describing anythin extremly disqusting.
jane blerched all over the food in olive garden

aww man! i just blerched my pants

honey! the baby blerched all over the new tv
by tether foot August 05, 2009
 
1.
To describe something that is dank as shit.
"How did it go last night?"
"Yo her pu$$y was so blerch!"
by Brad the Wall October 02, 2014