*in a lather
Fig. flustered; excited and agitated. (*Typically: be ~; get [into] ~.) Now, calm down. Don't be in a lather. I always get in a lather when I'm late. I get into a lather easily.
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.
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.
work oneself (up) into a lather
and work oneself (up) into a sweat 1. and work up a sweat Lit. to work very hard and sweat very much. (In the way that a horse works up a lather.) Don't work yourself up into a lather. We don't need to finish this today. I worked myself into a sweat getting this stuff ready.
2. . Fig. to get excited or angry. (An elaboration of work oneself up to something.) Now, now, don't work yourself up into a lather. He had worked himself into such a sweat, I was afraid he would have a stroke.