Copyright: it's on the mouse
"For you, it's on the mouse" or just "It's on the mouse" is an art meme that originated from a post on Tumblr. The phrase inspired a wave of artwork depicting the scene on sites such as Twitter, making it another part of the growing 2022 trend of Fan Art memes being prevalent. The pun is a wordplay on the phrase "it's on the house" which often means that the item in question is free, paid for by the house (establishment).
The art meme was first posted to Tumblr on May 28th, 2022, following a comment being posted by Tumblr user anarcho-skamunist which would go on to inspire the initial art piece by funpuppyvideos, which itself was a version of the Hey Check Out How Hard I Can Pee meme.
If you went to a bar and the bartender was a mousegirl you could ask for a drink and she would balance it on her head and say "for you, it's on the mouse"
KnowYourMeme page on the subject
See also
This tag implicates meme (learn more).