Possible Clues:

• Like climbing the walls?
• Silly to include mother in the vernacular
• Mother indulged in senseless sort of speech - that's characteristic
• Mother, I had ten with a twitch, in a manner of speaking
• Using characteristic speech
• Scholar translated into simple vernacular
• That''s what''s so silly about Mother, in a manner of speaking
• Natural fool in charge, arts graduate brought in
• Ridiculous ringing Mother using the vernacular
• Foolish when keeping mum? That's colloquial!