1) When a person's scent reflects how a bear might smell when under stress or when faced with a challenging situation.
I was going to go to the concert with Louise, but she was smelling a bit nervous bear so I went with my mum instead.
by Thom Gins March 16, 2008
1 more definition
A gentleman who still lives with his mother into late adulthood and spends all his day flaming and trolling on the internet.
1. Come on, get a job, get a house and a life, stop being such a nervous bear.
by paul mctavish March 23, 2007