When the tip of the phallus protrudes through a article of clothing worn in the leg region; When the tip of the penis sticks out of the band of male underwear when they have an erection. Popular examples coined by Daniel Avidan from the popular Youtube channel Game Grumps.
Part 4 of the Bloodborn Walkthrough on Game Grumps (Death Barf) Danny- "My friends and I created a new um, a new ah, term for when you get a boner; but like the top of it comes out of the waistband of your underwear. It's a Tip Slip. (Arin laughs hysterically afterwards)
"Hey man, John just gave a major tip slip in Gym today!"
1. A verbal or written flub-up in which one says what one really meant, rather than what one meant to say, by accidentally adding or subtracting a word or substituting a similar word that means something that indicates what one really thinks. The phenomenon is named after Sigmund Freud, who first described it.
2. Sigmund Freud in exhibitionistic drag.
1. I didn't mean to say the math teacher was fat. It was only a Freudian slip that I said her triangle had a hippopotamus when I meant to say hypotenuse.
2. No RL example known. If you do see it, snap that Kodak moment and post it.
When you meet someone of the opposite sex who is incredible and you have such a fantastic time but only for a short period. You both go your separate ways wishing you could stay together longer. Normally when you meet someone away from home. You part with fond memories of each other.