Sentence:  'Mayday... Mayday...' Rimmer turned. 'I wonder why it's "Mayday"? ... The distress call. Why d'you say "Mayday"? It's just a bank holiday. Why not "Shrove Tuesday" or "Ascension Sunday"?' ... 'It's French, you <WSD>doink</WSD>. Help me - "m'aidez". How much food is there?' 
Meaning of the word marked with <WSD> tags:  A fool; a jerk; a worthless person.