Follow TV Tropes
So, this trope as written right now? Really vague. By the end of the article's introduction, we've basically got a trope where a couple can be considered a "Last Minute Hookup" so long as anyone in the audience thinks that the couple didn't start a relationship until their pre-determined standards are met. Even if the couple is actually acting like a couple well before it.
Trope Repair Shop is full, but I hate to let things sit. This trope needs to be tightened lest Trope Drift take too deep a hold. My impression of a "Last Minute Hookup" would be, literally, a couple that waited until the last minute to engage in romance.
That just presents the same problem; "romance" is a very vague term.
Community Showcase More
How well does it match the trope?