an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom

an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom

utter a yawn, as from lack of oxygen or when one is tired

an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom

an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom

an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom

an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom

an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom

an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom

an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom