sneaking suspicion

not enough to hang a dog on

Of evidence, not strong or compelling; with very little or insubstanti…

shot in the dark

A guess, attempt, or choice made with little or no evidence or knowled…

more cry than wool

Dramatic assertions that are backed by little evidence.

wishful thinking

The formation of beliefs based on an outcome that aligns with one's de…

put down as

To assume the particularity of someone's character based on very littl…

think with one's little head

To make decisions or act based on one's sexual impulses rather than ba…