make like a baby and head out

A pun on head out (“depart for another place”) and the idea of a newborn baby emerging headfirst from the womb.

make like a baby and head out (third-person singular simple present makes like a baby and heads out, present participle making like a baby and heading out, simple past and past participle made like a baby and headed out)

1. (humorous) To leave, depart, go out.

• make like a banana and split
• make like a tree and leave