n. 1) The face that is made right before a full blown fit of crying, reguardless of age, sex,etc.
2) The mouth part of a Troutmouther
3) One who troutmouths or is known to troutmouth.
4) to complain, bitch, whine or cry about stuff
"Quit troutmouthing and just do it!"
"Here comes ol Troutmouth, don't tell em you seen his ex at the karioki bar last night."