Explaining a person's culture or their country's politics and how they should behave through an anglospheric prism with utter ignorance about said person's meaning/culture/lived experience/history etc
There goes Mark Francois Anglosplaining the German car industry's relationship with the UK to Angela Merkel again
When an English speaker tries to teach Spanish grammar/vocabulary to a native Spanish speaker, usually by correcting their speech
Wow, he spends 2 months in Spain and he’s already anglosplaining to us.