Any vessel driven by an engine (either inboard or outboard), but especially a small one.
To ride in a motorboat.
To press one's face between (another person's breasts); to press one's face between the breasts of (another person).
To press (someone's face) into or between (breasts or, by extension, something else); to press one's breasts around (someone's face or head).
To press one's face into or between (something else).
A small, fast motorboat.