Go out on a limb and Happen upon

Happen upon and go out on a limb are semantically related in imagine topic. In some cases you can use "Happen upon" instead a verb phrase "Go out on a limb".

Happen upon verb - To come upon face-to-face or as if face-to-face.

Go out on a limb and happen upon are semantically related in imagine topic. Sometimes you can use "Go out on a limb" instead a verb "Happen upon".