I think that the very short phrase "bugs' black blood" might be. Another short phrase that would run it a close second comes from the game "Mertwig's Maze" -- the "mystic musk ox".
There are many tongue twisters in the world. Like the peter pepper one or the woodchuck one. There are thousands and millions of those tongue twisters. What I would recommend to do is go to google.com or wikipedia.org and search tongue twisters or hardest tongue twisters. Well... you get my point, and then see what they have. Hope this helps!
"Twisted Tongue Teasers" is a really good YouTube channel that has the best Tongue Twisters. They also do unique tongue twisters and the hardest tongue twister challenges.
The Tagalog term for "tongue twister" is "balabalakit."
twisting your tongue
The first word in a tongue twister about seashells is typically "She sells."
First make it funny. Have maybe a tongue with the tongue twister coming off in a swiggly pattern or something. Be creative.
twisting your tongue
"Fiona the firefighter felt afraid fighting the fierce flames."
Sure! Here's a tongue twister for Ohio: "Olive owned an old owl, in Ohio, oh my!"
"Washington's washing machine washed Washington's washed-out shirts" is a tongue twister related to Washington.
of his tongue twister
a poet