You’ll walk over; but, you’ll crawl back! — a variation of You’ll walk over; but, you’ll limp back! Spoken as a prelude to the promise of a good fight; or, overly vigorous multi-position highly active sex — though not at the same time.

Neither of these are possible for the current generation of men who are still virgins at 28; and, keyboard warriors only at best!!! But, that’s another Urban Dictionary entry.
An extreme athlete just who spent 500 days in a cave and recently came out told her lover:

You can try to have sex with me if you want to; but, I’ve been in a cave for 500 days; You’ll walk over; but, you’ll crawl back!
by Mind Hunter the Profiler April 24, 2023
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