What is Grossheider?
1.
the act of either just plain hating everyone and everything around you, or; saying or doing something completely out of left field, thus baffeling those around you and then walking away, causing their respective brains to hurt with your own stupidity.
"i will never understand that grossheider..."
"he always pulls that grossheider crap when they come around!"
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1.
What you have to do when the airplane is so overcrowded you cannot walk. Always occurs during long 10+ hour flights. The plane will usua..