Do something to death
Definition 1 of 1
Pro Tip 1/3Colloquial Usage
Used in casual conversation, not in formal writing or speeches. 
She wore that meme to death on her T-shirts.
Pro Tip 2/3Negative Implication
Implies that too much repetition spoils enjoyment or interest. 
He talked about his vacation plans to death; I lost interest.
Pro Tip 3/3Cultural Hyperbole
It’s a hyperbolic expression emphasizing overuse, common in English. 
That internet joke was funny till everyone shared it to death.