malapropism /malˈə-pro-pi-zm/

1. The misapplication of words without mispronunciation, from Mrs Malaprop in Sheridan's play, The Rivals, who uses words malapropos
2. A word so used

• full house
• fulling
• fulling-mill
• fulling-mills
• fullish
• full-length
• full-line forcing
• full-manned
• full marks
• full moon
• full moons
• full motion video
• full-motion video
• full-mouthed
• full nelson
• full nelsons
• fullness
• fullnesses
• full of beans
• full of oneself
• full of one's own importance
• full of years
• full-on
• full-orbed
• full orders