Yes, we can sometimes hear the phrase 'back stick' which means the far post - the one furthest away from the player crossing the ball.

If a player scores at the back stick it means that they have arrived at the far post to score (maybe unmarked)

Here's an example from the Norwich City official twitter account of the phrase:

Stiepi at the back stick for number 3️⃣... 👏 pic.twitter.com/97Z6SWnQ6h
— Norwich City FC (@NorwichCityFC) August 21, 2020

https://platform.twitter.com/widgets.js

Good one, I didn't know it, just "the far post".

Nice explanation with video example.