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general::
Phrase(s): lather oneself up
[for one] to apply soap lather to one’s body. • He will spend a few minutes lathering himself up before he rinses. • He lathered up and then shaved., Phrase(s): lather up
1. [for a horse] to develop a foam of sweat from working very hard. • The horses lathered up heavily during the race. • Don’t let your horse lather up! 2. [for soap] to develop thick suds when rubbed in water. • This soap won’t lather up, even when I rub it hard. • When the soap lathers up, spread the lather on your face and rub. 3. and lather oneself up [for one] to apply soap lather to one’s body. • He will spend a few minutes lathering himself up before he rinses. • He lathered up and then shaved., Phrase(s): lather something up
to apply thick soapsuds to something, such as part of the body or all of it. • He lathered his face up in preparation for shaving. • He lathered up his face.
McGrawhill's American Idioms And Phrasal Verbs