Bored stiff
Definition 1 of 1
Pro Tip 1/3Intensity
Indicates a very strong feeling of boredom, stronger than just saying 'bored'. 
After three hours of data entry, I was bored stiff.
Pro Tip 2/3Informal Speech
Commonly used in casual conversation, not in formal settings. 
At family gatherings, I'm usually bored stiff with the small talk.
Pro Tip 3/3Negative Emotion
Expresses a negative emotional state; use when sharing complaints or frustrations. 
I was bored stiff waiting in line at the post office for an hour.