pil‧lion /ˈpɪljən/
noun [singular] British English[
Date: 1400-1500;
Language: Scottish Gaelic;
Origin: pillean or Irish Gaelic pillin, from peall 'couch']
the seat behind the driver of a
motorcycle:
a pillion passenger—pillion adverb:
Tom had never ridden pillion before. [TahlilGaran] Dictionary of Contemporary English ▲