To be actively grumpy, in such a way that the person in question is actively making an effort to be grumpy and, moreover, express that grumpiness.
by BTKD March 15, 2011
Get the Grumpingmug. "Why does he seems depressed today?"
"He's just grumpy. He does it really well, too. I woke up today, planning to be grumpy, but it just didn't work out."
"Okay, he's grumping his way over; we can leave now."
"He's just grumpy. He does it really well, too. I woke up today, planning to be grumpy, but it just didn't work out."
"Okay, he's grumping his way over; we can leave now."
by abalone gyro April 23, 2004
Get the grumpingmug.
Get the Grumpmug. by Willmerson September 18, 2007
Get the grumpsmug. by Blowfish3 October 22, 2009
Get the grumpingmug. 
