How to pronounce“pilling”in English

So customers complained about the pilling in their very, very expensive yoga pants.

And I'm sure this rings true these couple of weeks as final assignments are pilling up for all of us.

wear that $8 t-shirt before it being discolored, before it pilling, before any of these things because of all the things that we talked about-- fabric quality

They had come up with a new line of yoga pants using a new fabric, and the customers found that over time, they were pilling in between the thighs.