From en.wiktionary.org:
** Czech
*** Pronunciation
- [cs-IPA]
*** Proper noun
[m-an]
1. [cs]
**** Declension
[m.an.surname]
*** Further reading
- [R:cs:Prijmeni]
** German
*** Etymology
After 1950, short for [de], itself from [de].
*** Pronunciation
- [de]
- [de]
*** Noun
[m,s,s:e [ less common ]]
1. [de] chav [lower-class person, often aggressive or otherwise ill-behaved]
**** Declension
[m,s,s:e]
**** Derived terms
- [de]
- [de]