A sexual position in which the male lies motionless on top of a female until he ejaculates. This position requires much practice for lazy bears almost always go into hibernation.
Joey- "Bro I totally pulled a lazy bear on my economics teacher last night."
Bryce- "NO WAY! Last time I was with her I totally went into hibernation"
Robbert- "That's because you're not as skilled and as well-endowed as Joey"