My dad was a guest professor at the University of Heidelberg in the 1980s and is fluent, so I grew up around the German language. I studied it in school to further refine it. Unfortunately, it's out of practice so my vocabulary has fallen out of practice, but I can pick up on the hockey vocabulary by context watching the broadcast. Because I "had" it from a young age, it's a language I can just think in, if you know what I mean. This is unlike my knowledge of Mandarin, where I'm kind of rapidly translating back and forth between it and English to make sense of it.
Does that make sense?