sandwich girl —(sl.) a super-skinny girl who looks like she hasn’t eaten in weeks:
- Joe talks about how he’s all about body acceptance and real women, but all he ever dates is sandwich girls.
sandwich man—a man carrying two placards fastened together with straps supported on his shoulders:
- Not a picket was to be seen, not even a sandwich man stood there, expressing his lonely indignation.
Note: The expression does not correlate in meaning with the phrase poster man—used of a person who is a (usually positive) symbol for smth.:
- He is alive and well; he is the poster man for what is possible after having a transplant.