Terms starting with U
Missionary Dating
Youth Group & Camp"Unequally yoked" (from 2 Corinthians 6) is the warning against a Christian marrying a non-Christian; "missionary dating" is the tongue-in-cheek name for dating someone in hopes of converting them.
“"The church's warning about marrying outside the faith — and the nickname for dating someone to convert them."”
Total mystery
Unspoken (Prayer Request)
Prayer & DevotionA request for prayer about something the person doesn't want to describe — "please pray, but I'm not going to say what for."
“"Something's wrong, I'd like your prayers, and I'd rather not explain."”
Total mystery