1.  bonk(v = verb.contact) bang, be intimate, bed, do it, eff, fuck, get it on, get laid, have a go at it, have intercourse, have it away, have it off, have sex, hump, jazz, know, lie with, love, make love, make out, roll in the hay, screw, sleep together, sleep with - have sexual intercourse with; "This student sleeps with everyone in her dorm"; "Adam knew Eve"; "Were you ever intimate with this man?"
is one way to copulate, couple, mate, pair
Sample sentences: Somebody ----s

2.  bonk(v = verb.contact) bash, bop, sock, whap, whop - hit hard;
is one way to hit
Sample sentences: Somebody ----s somebody

bonk, v. & n.
--v.
1 tr. hit resoundingly.
2 intr. bang; bump.
3 coarse sl. a intr. have sexual intercourse. b tr. have sexual intercourse with.
--n. an instance of bonking (a bonk on the head).

Derivative:
bonker n.

Etymology:
imit.: cf. BANG, BUMP(1), CONK(2)