someone who bitches and complains about everything in life 24/7, even in their sleep... these type of people are easy to spot because they usually sleep with one eye half-open. this type of person becomes even more aggitated when taken on vacations and the level of complaining reaches a peak until they return home to their boring lifestyle, primarily in front of a computer
When "Mike" came along with us to the Wilderness he became such a grouser.
by Salad Fingers September 17, 2004
a complainer
You are such a grouser
by Sarah May 21, 2003

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