- (informal) Eyeliner when used on men; usually associated with the goth and emo subcultures.
- 2011, Joanna Pearson, The Rites and Wrongs of Janice Wills, page 29:
- I threaded my way through a crowd of Goths slouching against cars in guyliner and black pants […]
- 2012, Megan Bostic, Never Eighteen
- Trevor looks kind of emo, rail thin, dark hair, guyliner, wears black all the time.