dream on phrase 1verb 1forms 4 phrase1 •Used to express skepticism or derision about the possibility of an interlocutor's statement.When you first come out, you might have an overactive gaydar. When I realized I was gay, I wanted everyone to be gay too, which led to a lot of wishful thinking. "Helen Hunt is gay!" Dream on, girl! — 1996 verb1 •To sleep on (something); to consider (something) by dreaming about it. formsdreamed on · dreamt on · dreaming on · dreams on