As opposed to boyfriend dick.
A penis that is so big, it proves unrealistic for long term use.
Better used every now and again, like a vacation.
"Are you going to see him again?"
"Not for a few months, he's got that vacation dick. As much as a constant vacation sounds good, my body can't handle it 24/7.
A dick that is far larger than average. It is good to fuck once to take a vacation but is too big to be an everyday occurrence like boyfriend dick
A: I had some great sex last night.
B: Why so good?
A: I got a nice vacation dick, too big for normal fucking but it was a nice change of size for one night.
A horse size penis that you can't really handle but you figure f it I'm drunk and take itanyways.
Holy hell, he had a vacation dick Amy. I didn't think it would fit but I was so drunk it didn't even matter. Now I won't be able to walk right for weeks.