Look at, glance at, as in Will you take a gander at that woman's red hair! This
Can take a gander mean take a guess?
(idiomatic) To take a look; to check or examine. Take a gander is defined as to make an attempt or venture a guess. ... An example of take a gander is when someone asks if you want to try to answer a hard question in a trivia game, or help to solve a puzzle that is being done.
What does Gander mean in slang?
Besides being the proper name for a male goose and a slang word for silly man, the word gander also shows up in the idiom "take a gander." The slang sense of gander comes from the meaning recorded in 1886, to take a long look by craning one's neck like a goose, or wander foolishly (again, like a goose).