IPA: /ˈlɪpˌstɪkt/
KK: /ˈlɪpˌstɪkt/
Describing something that has been adorned or colored with lipstick, typically referring to lips that have been made up with this cosmetic product.
She smiled, revealing her lipsticked lips that shone in the light.
Lipsticked → It is formed from "lip" (from Old English "lippa", meaning the edge or border of the mouth) and "stick" (from Old English "sticca", meaning a stick or rod). The word "lipsticked" refers to having applied lipstick to the lips, thus giving them color or enhancement with a stick-like substance.
Think of the 'edge of the mouth' ('lip') being enhanced with a 'stick' of color — that's what it means to be lipsticked.