Definition & Meaning of "[bore] the pants off {sb}"

What is the origin of the idiom "bore the pants off someone" and when to use it?

The origin of the idiom "bore the pants off someone" is not definitively known, but it likely emerged in the early to mid-20th century. The phrase uses the verb "bore" to describe the act of causing extreme boredom or disinterest in someone, while the addition of "the pants off" intensifies the expression. It is used to suggest that the subject or activity being discussed or experienced is so repetitive or uninteresting that it figuratively removes the listener's enthusiasm or excitement, leaving them mentally or emotionally stripped of interest.