SNT (Side N¡99a Treatment) Is:
When your significant other does not make you their priority. Their actions show that your relationship is not as serious to them as they claim. When they choose to give more focus on all other this except their significant other.
Me- Hey I texted and called you to see if you wanted to get lunch together on my break. What happened?
Her- Oh yeah, I’m sorry babe I forgot to hit you back. Sorry.
Me- You always do this I’m never a priority you always give me the SNT (Side N¡99a Treatment).
A portmanteau of "threating" and "romantic" from an episode of "Fairly Odd Parents" wherein Timmy Turner's parents try to help Timmy write an effective love-email to his crush Trixie Tang by combining the usual lovey-dovey cliches with threatening that she'd better date him if she ever wants to see her parents again.