Colonel Blimp
noun
1
a shrimp (seafood). Rhyming slang, inspired by the following sense UK, 1992.
2
a very conservative, reactionary man. Often shortened to 'blimp'. From the cartoon character invented by British cartoonist David Low, 1891–1963, and brought to life by Welsh actor Roger Livesey, 1906–76, in the film The Life and Death of Colonel Blimp, 1943 UK, 1934