Twenty years ago, I dated an Arab man. He and his brother were raised Muslim but considered themselves atheists. When my BF washed his face, he'd also snort a small amount of water up his nose. I thought he did it accidentally until I saw him do it the next time I saw him wash his face. I thought maybe he was clearing out his nose, which made sense to me because he had allergies. I didn't think of asking him about it because I thought I'd be rude if I did.
Was my old boyfriend snorting water through his nose part of ablutions (I don't know the Arabic word)? A cultural/geographical practice? Something unique to him?
Thanks in advance.