A slip is a woman's undergarment worn beneath a dress or skirt to help it hang smoothly and to prevent chafing of the skin from coarse fabrics such as wool. Slips are also worn for warmth, and to protect fine fabrics from perspiration.
Guy : "You could see her pink underskirt hanging below the hemline"
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Mom : "Monica what will you be wearing for the dance today ?"
Monica : "Planning to wear the cream long dress, mom"

Mom : "Thats nice, but remember to wear a underskirt as it is a bit transparent"
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Principal : "Girls should wear underskirts with their dresses for modesty"
by Gennylk June 8, 2007
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