This tongue-tied malaphor should be the slogan for all malaphors. It is a mashup of “tripping over (one’s) words” (speak unclearly) and “slip of the tongue” (an error in speaking). “Stumble over (one’s) words” might also be in the mix. Using the tongue to speak was clearly on the speaker’s mind when she confused slip and trip. A big thank you to Doree Simon who uttered and sent in this mixup.