BUSHWHACK
ambush, scupper, bushwhack, waylay, lurk, ambuscade, lie in wait
(verb) wait in hiding to attack
bushwhack
(verb) cut one’s way through the woods or bush
bushwhack
(verb) live in the bush as a fugitive or as a guerilla
Source: WordNet® 3.1
Etymology
Verb
bushwhack (third-person singular simple present bushwhacks, present participle bushwhacking, simple past and past participle bushwhacked)
to travel through thick wooded country, cutting away scrub to make progress
to fight, as a guerilla, especially in wooded country
to ambush
Source: Wiktionary