Hello, and welcome, visitors from Fimoculous!
I haven’t been able to track down an origin for this phrase, if there is one.
Variants on X include act, love, pretend, work, pray, sleep, party, travel, blog, knit, wriggle, lecture, push this book, stalk.
It looks like there might be some limitation on how long a phrase can fill that X slot, at least from what snowclone.pl shows me. This makes sense from a production perspective: it seems like once X gets too long, it’d be easy to either forget how you were going to finish the sentence, or find the sentence so unwieldy by the time you got halfway through it you’d have a hard time finishing it. (“I’m going to lay on the beach and drink margaritas like I’ve never lain on the beach and … Wait, what was I talking about again?”)
I thought “X like you‘ve never Xed before” would be just as common and variable as the I version, but snowclone.pl returns me nothing for it. [I will have to try again later; I seem to be having technical difficulties with the script.]