To subject to an excessive demand on strength, resources, abilities, or the imagination.
excessive strain
To open the mouth widely and take a long, rather deep breath, often because one is tired or bored, and sometimes accompanied by pandiculation.
To present a wide opening; gape.
To say while yawning.
The action of yawning; opening the mouth widely and taking a long, rather deep breath, often because one is tired or bored.
A particularly boring event.