To flap means ‘to move back and forth loosely’ or ‘to move up and down,’ like wings or arms. As a slang term, ‘to become excited or confused,’ usually because of stress, is also to flap. As a noun, a flap is…
A squeal is a long, sharp cry, as of pain, surprise, fear, or excitement or a screeching sound. Informally, in US English, a protest or complaint about something can be called a squeal. As a verb, squeal obviously means…