The phrase "to get tired of something" means that you no longer enjoy or have interest in that particular thing.
Sentences with «to get tired of something»
I've been having this recipe for lunch every day this week and I just never get tired of it... it's such a delicious and refreshing combo of flavors! (truthaboutabs.com)
They just seem to work better, longer (I don't get tired of them as fast!). (theinspiredroom.net)