eat my nose
Saying 'eat my nose' is like saying 'kiss my face' and it's so stupid because no one wants to kiss your nose and you're just trying to be cool and you're not.
He said 'eat my nose' and I just laughed in his face.
'Eat my nose or I'll take your lunch money!' 'Okay, okay!'
She said 'eat my nose' and I knew she was just trying to be funny and she wasn't.