What does tongue twister mean?

Eat grapes without spitting their skins. Its next sentence is don't eat grapes and spit grape skins, which is a traditional tongue twister in China. The general meaning is:

When eating grapes, eating the whole grape together with the skin looks like eating grape skins. After eating the pulp, it spit out the grape skin just now, which looks like it spit out the grape skin without eating the grapes

Other tongue twisters

1, visit the West Lake, carry the tin pot, drop the tin pot into the West Lake, and cherish the tin pot; Listening to physics is like being in fog, watching physics is like being in fog, and ignoring physics.

2. There was a lazy man, whose real name was Ruan, carrying a basket to sell eggs and shouting "sell eggs" and "sell eggs". No one came to buy eggs, not because the variety of eggs was chaotic, but because the skin of eggs was too soft. It's hard to buy rice without selling eggs, and it's a long way to go home for dinner. Burn the burnt grass to keep warm, and eat some soft eggs in the basket.

There are round eyes in front of the mountain and round eyes behind the mountain. They came to the mountain to compare their eyes. I don't know whether round eyes or round eyes are better than round eyes.

Four, four and ten, ten and four, fourteen and forty, forty and fourteen. It is said that four and ten depend on the tongue and teeth. Who said that forty is a "thin mat" and the tongue is not hard; Who says fourteen years old is "timely"? His tongue is not straight. Study hard and practice often, fourteen, forty, forty-four.

Teacher Shi, Shi, Shi and I are together every day. Teacher Shi taught me selflessness, teacher Si gave me spiritual food, teacher Shi told me to think twice when something happened, and teacher Shi gave me the key to knowledge. Thanks to Teacher Shi, Teacher Si and Teacher Shi.