get your tongue round something
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 somethingBRITISH, INFORMAL
If 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.