An extrovert
A penis, seen as an everted version of a vagina
A navel that protrudes from the abdomen.
Anything convex.
A vagina with external labia minora.
A person on a trip of indeterminate destination and/or length of time.
One who usually wanders from place to place, having no fixed dwelling, or not abiding in it, and usually without the means of honest livelihood.
To roam, as a vagabond
Floating about without any certain direction; driven to and fro.