/ bɒŋk; NAmE bɑːŋk/ noun , verb
■ noun ( BrE , informal )
1.
[ sing. ] an act of having sex with sb
2.
[ C ] the act of hitting sb on the head or of hitting your head on sth
■ verb ( BrE , informal )
1.
to have sex with sb :
[ vn ]
He's been bonking one of his students.
[also v ]
2.
[ vn ] to hit sb lightly on the head or to hit yourself by mistake :
I bonked my head on the doorway.
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WORD ORIGIN
1930s: imitative.