The act of carefully covering a toilet seat in a public bathroom with toilet paper or other protective paper so that your skin doesn't make contact with the toilet seat (and catching who knows what?)
Jimmy: Hurry dad! I gotta goooooo!
Dad: One moment Jimmy. I'm almost done gift wrapping the toilet seat. Then I'll let you sit on it. I don't want to think about who sat on this toilet seat before you!
Norwegian Giftwrapping is an ancient Norwegian hunting tradition. It is the act of wrapping your scrotum over a persons mouth, and then putting your anal sphincter over his nose. You then complete the ritual by making an emission of intestinal gas from the anus.
1. "Hey Lars is sleeping, lets give him a Norwegian Giftwrapping!"