eskimo kisses are when two people affectionatly rub thier noses back and forth together. "Eski'mo" is a conjuction of the same, except when performed by homosexual men, hence the "'mo" part. An exceptiple ending to an email or text message in place of "kisses", "smoches", "chao", etc.
Honey, You need to lose a few pounds if you expect to be invited to the Party next week. And by a few pounds, I mean, of course, your latest boy-toy Eric.