ah yid, that’s a LOT of pressure for a chasan! How embarrassing for him to have to stand there and basically cry on cue, and hold up the entire chasuna if he can’t!! I personally would have given up the honor of having such a person officiate rather than agree to those terms.
golfer, I believe you mean “dyed-in-the-wool”, from the French “pure laine”. There’s a Wikipedia page on the origin and meaning of the expression if you’re interested.