knack·wurst or knock·wurst 
(nŏkwûrst′, -wrst′)
(nŏkwûrst′, -wrst′)n.
A short, thick, highly seasoned sausage.
[German : knacken, to crack (from Middle High German, of imitative origin) + Wurst, sausage; see WURST.]
- bubble
- bubble and squeak
- bubble bath
- bubble chamber
- signaller
- signally
- signal-to-noise ratio
- signal transduction
- signatory
- signature
- signboard
- signed
- signee
- signer
- signet
- signet ring
- signifiable
- significance
- significance level
- significancy
- significant
- significant digits
- significantly
- significant other
- signification