notmurraymacleod asked: Is it true that "lecker" isn't used so much because it is considered rude? My teacher said that on a trip to Germany that's what her host family said.

No. Lecker means “yummy” or “delicious” and is associated with food/drink. I don’t see why it’s a rude word. I know that it can also have a sexual connotation as in “Der Typ sieht lecker aus” (Literal: This guy is looking yummy), but still - it’s not a rude thing to say (it’s more funny and sassy).