/p is a tone indicator which means 'platonic'. it's used in text to show that whatever you're saying, is completely platonic, unlike its counterpart /r
The most feared letter that could be typed in a URL as the first letter by a parent or peer attempting to use your device to search something. Especially stressful if continued by the letters O and then R.
Dad: Now just hold on, Jimbo. Just lemme use your computer to check out portfolio.com
:P is quite possibly one of the most clean and innocent emoticons to ever exist. You ideally would add this towards the end of your sentence to convey a sense of playfulness and lightheartedness, especially when the things you've said can come off as a bit inappropriate/insensitive if interpreted the wrong way.
NOTE: this text-based emoticon CANNOT be substituted for the emoji equivalent of a tongue sticking out (especially not the standalone tongue, dear god no).
Girl classmate: Lol same, was too busy studying that I literally forgot to drink some water
Guy classmate: Ugh I'm so thirsty 🥵👅
Girl classmate: Ummm....
Guy classmate: Lol what? I mean I'm thirsty for water Girl classmate: Ohh, I thought you meant something else lol