Stereotypical ladder climber

• Justice seeker, maybe
• Wedding march skipper
• Runaway groom
• Las Vegas bride, often
• One not expecting a great reception?
• Lover with a ladder, perhaps
• Furtive bridegroom
• One of a couple eschewing a ceremony
• By-passer of large wedding

Wiktionary Word definitions in Wiktionary
n. agent noun of elope; one who elopes.