get (one's) tongue around (something)
To be able to pronounce a challenging word. I have a hard time getting my tongue around a lot of Spanish words because I can't roll my R's.
get your tongue round something
BRITISH, INFORMALIf you can get your tongue round a word or phrase, you can pronounce it. Even he can get his tongue round these Spanish terms. The Americans find it hard to get their tongues around foreign words.
get your ˈtongue round/around something
manage to say a difficult word correctly: I sometimes find it difficult to get my tongue around the word ‘sixth’.