A tongue-twister is a phrase that is designed to be difficult to articulate properly. Tongue-twisters may rely on similar but distinct phonemes (e.g., s [s] and sh [ʃ]), unfamiliar constructs in loanwords, or other features of a language.

(F, W, Voiced Z)

  Fuzzy Wuzzy was a bear,

  Fuzzy Wuzzy had no hair.

  Fuzzy Wuzzy wasn’t fuzzy, was he?

(Voiced V)

  Vincent vowed vengeance very viciously.

(P)

Peter Piper picked a peck of pickled peppers.

A peck of pickled peppers Peter Piper picked. 

If Peter Piper picked a peck of pickled peppers,

How many peppers did Peter Piper pick?

(SH, S and Z)

She sells seashells by the seashore.

The shells she sells are surely seashells.

So if she sells shells on the seashore, I’m sure she sells seashore shells 

(W, CH, and Final Consonants)

How much wood, would a woodchuck chuck if a woodchuck could chuck wood?

He would chuck, he would, as much as he could, and chuck as much wood as a woodchuck would if a woodchuck could chuck wood.

(W)

Which witch, wished which wicked wish?

While we were walking, we were watching window washers wash Washington’s windows with warm washing water. 

If two witches would watch two watches, which witch would watch which watch? 

(R)

Roberta ran rings around the Roman ruins.

(B, BR, and BL blends)

Bradley’s big black bathbrush broke.

(TH)

Tom threw Tim thirteen thumbtacks.

He threw three trees.

There are thirty-three thousand birthdays on the third of every month.

The father gathered smooth feathers for hanksgiving.

(GR, and GL blends)

Green glass globes glow greenly.

(L, ‘OO’ vowel)

Aluminum, linoleum, aluminum, linoleum,  aluminum, linoleum,  aluminum, linoleum.

(Won’t)

I would if I could! But I can’t, so I won’t!

(Woke)

I woke, he woke, she woke, they woke.

We all woke up.

 Realated version:

English Tongue Twisters (Part 2)