"Yes I am," he said, his thumb flicking across the pink tip.
Her thumb flicked the end of the cigarette so hard she broke the filter tip clean off.
His thumb flicked the tip of her breast.
His thumb accidentally flicked three kernels from the ear.
He had gone to sleep dreaming about this; his thumb flicked the safety an instant before his finger pressed the trigger.
Her thumb flicked open the lock as her right arm hauled back.
The bassoon has similar keys used by the left thumb, but these are usually only depressed at the attack of notes, or "flicked".
His thumb then flicked the switches to activate the thought-trigger and -guidance systems.
His thumb flicked one on abruptly, before he'd clamped down his nerves to look.
His thumb flicked the pin on the stun grenade in his hand.