bonk
UK[bɒŋk]US[bɑːŋk]
v
to hit someone or something, especially on the head, causing a short hollow sound.
v
(informal, chiefly british) to have sexual intercourse.
v
(informal, in endurance sports) to experience a sudden loss of energy and physical ability.
Etymology
the word 'bonk' is a classic example of onomatopoeia, a linguistic formation where the sound of the word imitates the sound it denotes. emerging in english in the 20th century, it directly mimics the short, dull, resonant sound of a blow, particularly to the head. this primary sense of a hollow impact naturally extended into informal british slang for the act of sexual intercourse, likely due to humorous or euphemistic association. further semantic expansion occurred in the lexicon of cycling and marathon running, where 'to bonk' describes a sudden physical collapse, metaphorically equating the sensation to being hit on the head.
Analysis
this word is considered a simplex form. it is an onomatopoeic formation, imitating the sound of a hollow impact or blow. its functional role is as a verbal root.
Examples
i accidentally bonked my head on the low doorway.
the comedian joked that the couple had gone upstairs to bonk.
if you don't eat enough during the race, you might bonk before the finish line.