The polite way of telling
someone they'
re a dumb ass without letting them know you'
re thinking they have recently acted or spoke without using even an nth of thought/brain activity.
Act: Your
best friend insistently waving at your mom as you drive past her in the Walmart parking lot while skipping school.
BFF: Look! It's your mom. (Waving and yelling, "Hey Mrs.
Connor")
You: Yeah but we are supposed to be in gym class right now, Silly!