Natch
/nætʃ/
Definition 1 of 1
Pro Tip 1/3Casual Usage
Use 'natch' in casual or informal conversations rather than in formal writing or speeches. 
You're coming to the barbecue, natch?
Pro Tip 2/3Predictable Situations
'Natch' is best when the situation is predictable or when the outcome is what everyone expects. 
She won the game – natch, since she's the best player.
Pro Tip 3/3Sarcasm or Humor
It can add a tone of sarcasm or humor if the situation is not as obvious as it seems. 
He forgot our anniversary, natch.