0 a smile that expresses satisfaction or pleasure about having done something or knowing something that is not known by someone else: --
1 to smile in a way that expresses satisfaction or pleasure about having done something, or knowing something that is not known by someone else: --
2 to smile in a way that expresses satisfaction with yourself or pleasure about having done something or knowing something that is not known by someone else: --
When she told him he was cool, he just smirked.
He will spend his three minutes of glory smirking triumphantly.
The defendant appeared to be sniggering and smirking.
What are you smirking at?