1. hill climb - Noun
2. hill climb - Verb
English Wikipedia has an article on:hill climbWikipedia
hill climb (plural hill climbs)
A sporting event, during which vehicles are driven or ridden up a steep incline. The goal is to reach the highest level on the slope.
hill climb (third-person singular simple present hill climbs, present participle hill climbing, simple past and past participle hill climbed)
(intransitive) To attempt to ascend a steep slope using a motor vehicle or bicycle.
Hill climbing requires considerable skill.