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• soft soap
  soft soap

  noun

  persuasive talk; flattery.
• soft-soap
  soft-soap

  verb (used with object)

  to cajole; flatter.

soft soap

¹ American  

noun

1. Informal. persuasive talk; flattery.

   to use soft soap to get one's way.

2. the semifluid soap produced when potassium hydroxide is used in the saponification of a fat or an oil.

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soft-soap ² American  

[sawft-sohp, soft-] / ˈsɔftˈsoʊp, ˈsɒft- /

verb (used with object)

1. Informal. to cajole; flatter.

2. to apply soft soap to.

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verb (used without object)

1. to use soft soap in washing.

soft soap British  

noun

1. med another name for green soap

2. informal flattering, persuasive, or cajoling talk

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verb

1. informal to use such talk on (a person)

soft soap Cultural  

1. Flattery: “Mary asked the boss to stop giving her a lot of soft soap about her performance and to start leveling with her like any other employee.”

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soft soap Idioms  

1. Flattery, cajolery, as in She's only six but she's learned how to get her way with soft soap. This colloquial expression alludes to liquid soap, likening its slippery quality to insincere flattery. Its figurative use was first recorded in 1830.

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Etymology

Origin of soft soap¹

First recorded in 1625–35

Origin of soft-soap²

First recorded in 1820–30

Example Sentences

See Examples For:

soft soap soft-soap

“Let us then discuss the value of soft soap on complexions — and husbands. … We shall sit together on the edge of the world. You have wanted a friend. I’M IT.”

From Washington Post ● Oct. 11, 2022

Founder and creative director Joy Cho’s lifestyle brand offers whimsical products, spanning bandages to soft soap, as well as regular editorial content online.

From Los Angeles Times ● Mar. 31, 2021

I just buy the real soft soap and then mix it with water and refill this.

From Salon ● May 8, 2020

But flirtation it remains – by the end, the self-criticism is obscured by soft soap.

From The Guardian ● Mar. 7, 2011

I use gobs of soft soap out of a barrel.

From "A Tree Grows in Brooklyn" by Betty Smith

He then moved to London to work for a soft-soap company.

From BBC ● May 14, 2025

But, away from Fox News, the soft-soap treatment will only extend so far.

From The New Yorker ● Jan. 20, 2017

The implication is that what little engagement there has been has failed to soft-soap Kim Jong-un into change.

From BBC ● Feb. 23, 2016

But his revolution reads like soft-soap therapy where what's needed is something with a harder edge.

From The Guardian ● Oct. 17, 2014

Upon removing this covering, a buff-colored, pulpy substance of the consistency of soft-soap, was found—"of an offensive, suffocating smell."

From The Book of the Damned by Charles Fort