verb (used without object), grim·aced, grim·ac·ing.
Origin of grimace
Examples from the Web for grimacing
He subsided after this into one of his fidgety, grimacing, finger-nail-gnawing reveries.The Squirrel-Cage|Dorothy Canfield
John turned to look at the faces behind him, and every face was red and hot, and grinning and grimacing.The Christian|Hall Caine
And he was no grimacing, God's-in-His-Heaven, professional optimist.Rough-Hewn|Dorothy Canfield
But then, my dear friend, you must consider that there is a sort of method even in grimacing.
But a wave of tobacco-smoke took his graceful visitor in the throat and set him coughing and grimacing.The Sea-Hawk|Raphael Sabatini