bang heads together

:  to strike sharply :  bump

:  to knock, hit, or thrust vigorously often with a sharp noise

:  to strike with a sharp noise or thump

:  a resounding blow

:  a sudden striking effect

:  a quick burst of energy

:  right, directly

:  to cut (hair) short and squarely across

:  the upper or anterior division of the animal body that contains the brain, the chief sense organs, and the mouth

:  the seat of the intellect :  mind

:  a person with respect to mental qualities

:  of, relating to, or intended for the upper or anterior division of the animal body that contains the brain, the chief sense organs, and the mouth :  of, relating to, or intended for the head (see ¹head 1)

:  principal, chief

:  located at the end that is upper or higher :  situated at the head (see ¹head 5a)

:  behead

:  to put the striking part of a weapon, tool, or implement on :  fit a head (see ¹head 9b) to

:  to form the uppermost extremity or projecting part of :  to form the head or top of

:  in or into one place, mass, collection, or group

:  in a body :  as a group

:  in or into contact, connection, collision, or union

:  appropriately prepared, organized, or balanced

:  composed in mind or manner :  self-possessed