If you're sent S on snapchat, they are sending streaks. To get streaks to work, send an S every day back and forth. If they forget to send their S one day you are welcome to scream at them.

the art of remembering an arousing occurrence or some porn you watched while masturbating, often handy if you have no porn or your in the shower

its a fucking letter

This weird letter that is always automatically typed in the “Word” Bar when you try to upload a word into the Urban Dictionary...

The nineteenth letter of the alphabet. After R and before T.

Short form for the word "Yes" used by lazy fucks who don't want to type a three-letter word. Can be considered as the successor of "K" which is short for "Okay".

'S' is commonly used at the end of a message to represent sex. Similar to 'X' in the UK (kisses) and 'Xs and Os' (kisses and hugs) in North America, 'S' could be used between two people of the same sex without being regarded as homosexual. Usually more Ss means more intense sexual tension between the two parties.