"o'l merry eyes" adj originated 2007 english
Derived from an old myth of a hansome young science teacher, this term is used when someone
1) Knows you fancy them and you try to blank them by not looking at them directly
2) Are being sarcastic and raise your eyebrows to subtly hint about your love life
Megan asked if Vicki was at school, but the teacher just gave her the ol' Merry eyes.