As I get older, I seem to have more problems reading words I have written quickly, as sequences like "muvuw" become just one wavy line. I wondered what was the longest word that I would represent as a wavy line, and what was the longest wavy-line sequence as part of a word. The letters involved are those with no ascendents or descenders, i.e. aceimnorsuvwxzs. (Actually, I write 'z' with a descender, but that's not how it's printed.) The 'i' is included despite the giveaway dot because, in hurried writing, the dot appears in a rather random position above the wavy line, giving a false clue.
"Yes, We Have No Ascenders (Part 1),"
Word Ways: Vol. 32
, Article 7.
Available at: http://digitalcommons.butler.edu/wordways/vol32/iss3/7