1. applying mascara (a cosmetic product) to the eyelashes
Usage: present participle of 'mascara' used as a verb; informal

Examples

• She spent ten minutes mascaraing her eyelashes before the party.
• I'm mascaraing my eyes to make them look bigger.
• After mascaraing, she checked her reflection in the mirror.
• She was mascaraing when her friend called.
• He watched her mascaraing her lashes with practiced ease.