welly¹ or wellie /welˈi/ (informal)

1. A wellington of the loose rubber or plastic kind (also wellˈy-boot or wellˈie-boot)
2. (also green welly; often in pl and with caps) a student or other (young) person, typically of the landed class, whose noticeably preferred footwear is wellingtons, esp of a sturdy green variety, suggesting recent arrival from or imminent departure for a rural property (orig university sl; derogatory)

give it (some) welly or wellie (slang)

1. To put one's foot down heavily on the accelerator
2. To put all one's efforts and energy into what one is doing

welly² /welˈi/ (dialect)

• depriving
• de profundis
• deprogram
• deprogramme
• deprogrammed
• deprogramming
• deprograms
• depside
• depsides
• dept
• dept.
• Dept
• Dept.
• depth
• depth bomb
• depth bombs
• depth charge
• depth charges
• depthless
• depth of field
• depth of focus
• depth psychologist
• depth psychologists
• depth psychology
• depths