second dinner 

A dinner which occurs after conventional dinner time (5:30-8:00). Usually occurs near midnight/early morning (11:30-2:30). Consists of going out with friends to get said meal, usually fast food, but real resturants may be acceptable. In order to have second dinner, one must have first dinner.

Eaten to stave off sleep-munchies.

Dude, are you down for second dinner tonight after some counter-strike?

Today's dinner sucked real bad, I can't wait for second dinner.

How many times do I need to tell you? Second dinner is every wedenesday!!!

This food sucks, I'm already thinking about second dinner.

second dinner by Andrew 'The Captain' Hoang April 26, 2006

Second dinner 

Sucking your own penis after having a dinner that doesn’t fill you up.

Yo Mikey you having second dinner after that salad?

Second dinner by 500ToothDinasar May 20, 2021

Second Dinner 

A euphemism that began life as a sophomoric term for sex. It enjoyed a subsequent revival and rise in popularity after becoming associated specifically with oral sex.

Guy 1: "What's better then pancakes with dinner?"
Guy 2: "Pancakes with second dinner!"
Guy 1: "Oh, snap!"

Second Dinner by The 2 Berk Crew November 7, 2007