"haddest look-see" is an informal phrase used to describe the act of taking a quick glance or checking something out. There are many synonyms for this phrase, including "peep", "peek", "glance", "inspect", "survey", and "examine". Each of these words can be used in different contexts to convey a similar meaning to "haddest look-see". For example, "examine" implies a more thorough inspection, while "glance" suggests a quick and casual observation. Overall, these synonyms provide flexibility in language and allow for variation in tone and style while still conveying the same basic idea of taking a quick look.