Cows graze in groves on grass which grows in grooves in groves.
Seven sleazy shysters in sharkskin suits sold sheared sealskins to seasick sailors.
How to say it
This one trips up native speakers. Expect to bite your tongue a few times before it clicks. At this length, build up in two-beat chunks and then string them together.
Notice the run of 10 words starting with S - that's what makes it slip.
Why it's tricky
This 12-word twister packs its tricky sounds into a short window, so your tongue gets no rest between each trap. Tongue twisters work by packing similar or alternating sounds close together, so your lips and tongue have to reset faster than normal speech allows - practising them is a great workout for clear diction.
More like this
I saw Esau, he saw me, and she saw I saw Esau.
Freshly fried flying fish, freshly fried flying fish, freshly fried flying fish.
Sheep shouldn't sleep in a shack. Sheep should sleep in a shed.
Supposed to be pistachio, supposed to be pistachio, supposed to be pistachio.
What a shame such a shapely sash should such shabby stitches show.