(sequence) Used to introduce the first item in a possible sequence

(humorous) A metaphorical piece of headgear supposedly worn by a person to assist them in thinking about how to solve a problem.

present participle of think with one's little head

Alternative form of think with one's little head

(idiomatic, euphemistic, usually humorous, of a male) To make decisions or act based on one's sexual impulses rather than based on clear reasoning.

Alternative form of chance'd be a fine thing

Alternative form of think aloud protocol

(UK) To be too frightening or upsetting to even contemplate.

A data-gathering method used in a variety of research areas in people are asked to verbalise their thought processes as they do a specific task, and this is recorded for further analysis.

(usually as an interjection) An appeal to suspend rational consideration of an issue owing to its presumptive negative effects on the young and impressionable, usually in ironic or mocking parody of another's argumentum ad passiones or moral panic.