Ha cha cha
When you see someone so hot it feels like your eyes are melting and you want to eat them.
I saw my crush walking to school and said 'ha cha cha' so loud my dog ran away.
My friend walked in wearing a tight shirt and I said 'ha cha cha' in the middle of a math test.
I saw a guy at the store and said 'ha cha cha' so fast the cashier didn't know what hit her.