A noun needed for the shapeless mass of toothpaste

[Tom]

Hi

I need a 'noun' for any unshaped mass, for example, toothpaste.

[Mister Micawber]

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Perhaps you are thinking of a 'dollop' (or a smaller, almost ineffectual, amount would be a 'dab'), but sloppy people just put a 'blob' of toothpaste on their brush, while meticulous brushers 'lay a line' of toothpaste across its bristles.

PS: 'Shapeless' would be better, since there is almost as little possibility of shaping it as there is of pushing it back into its tube.
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Native English teacher at Mister Micawber's

[Tom]

Many, many thanks MM

One other question--may I?

Is the following sentence correct and natural?

[Yankee]

Hi Tom

I'd use 'onto' rather than 'on'.
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"Nearly all men can stand adversity, but if you want to test a man's character, give him power." ~ Abraham Lincoln

[Tom]

Hi, Amy

Thank you very, very much. :D

Would you say the following sentence is over-formal?

[Yankee]

Hi Tom

No, it doesn't sound overly formal.
You could also say this She carefully lined her toothbrush with toothpaste.
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"Nearly all men can stand adversity, but if you want to test a man's character, give him power." ~ Abraham Lincoln