The phrase "pig a poke" is commonly used to describe the act of buying something without thoroughly inspecting it first. Synonyms for this phrase include, "buying blind," "chancing it," and "taking a risk." Additionally, the phrase "cat in a bag" is often used in the same context as "pig a poke." Other synonyms include "taking a leap of faith," "buying sight unseen," "rolling the dice," and "trusting your gut." All of these phrases imply a level of uncertainty and risk in making a purchase or decision. It is important to carefully consider all options and thoroughly examine a potential purchase before committing to it.