I can't be fagged (to do something) phrase
Said when you are too tired to do something
He's such a boring man! I can't be fagged to date him.
I'm nearly falling asleep in the meeting. I can’t be fagged to join it.
To make one distracted, frustrated, or irritated
Completely fatigued.
Used when one suffers from mental or emotional exhaustion
This phrase is formed based on the meaning of the adjective "fagged".
 
To say the same thing repeatedly
Ok, I get it! You sound like a broken record, seriously!