When your so bored that it's painful
I had to wait at the bank for an hour yesterday, I actually had a boredache
1. To become so weary by dull, repetitive or tedious tasks that one starts to suffer from a dull, yet irrating pain.
"This is so repetitive it's giving me a boredache."
"Can we do something else? My boredache is acting up on me again."
"My boredache is tingling."