It’s not just for bellybuttons!
Now, for most of us, this just doesn’t make sense. However (and it may be peculiar to the midlands of SC) there is an common accent which renders the short “e” sound as a short “i”. Therefore, for example: “pen”, is pronounced “pin”.
So here, “Lent” is rendered “Lint”, and thus how it makes sense-at least to some. We had a laugh because of the occasional miscommunication that has resulted with our friends over this regional accent peculiarity.
In truth we didn’t get it right away. We did a doubletake and then got it.
Oremus pro invicem!