Welcome home is said to military men and women who have returned to the United States typically after being involved in a military conflict. Tradition starting after the disappointing returns so many soldiers received after the Vietnam War. Lately it has been used for any person in the military.
When I found out that John's friend was a returning soldier from Afghanistan as well as the Iraq war I told him, "Welcome Home" and shook his hand heartily.
Expression said to Burners arriving at Burning Man. Burning Man is an event over Labor Day weekend on a dry lake bed in northern Nevada. 47,000 people attended in 2007. If you attended and loved it, you are a Burner. The expression is intended to welcome a Burner back to the playa for another year of fun.
Said by the BM Greeters, "Welcome Home!"
Said to folks obviously just arriving at BM (driving in their overloaded vehicle) and looking for a camping spot, "Welcome Home!"
Said to a BM friend from a previous year, "Welcome Home! Where are you camped?"