In British slang, it depends on the context.
'The cheese is dodgy!' - Means that the cheese is out of date.
'This looks dodgy!' - Means that something looks suspicious or unsafe.
'He is a very dodgy person!' - Means that someone is suspicious and probably up to no good (ie criminal intent).
'Slough is a dodgy place!' - Means that the city of Slough is 'iffy' and should be avoided (true fact by the way).
The word "suss" is believed to have originated from British slang around the 1960s. It is a shortened form of "suspect" or "suspicious" and is commonly used to mean understand or figure out something.
It's British slang for an umbrella.
its a slang term for hello
It is British slang for female genitalia.
Codswallop is British slang for excuses or lies. For example: 'Your dog ate your homework? What a load of codswallop!'
This slang term would be applied to a heart that was not working right or had problems.
British Army slang from way back referring to women's breasts.
Bee's knees is British slang for 'fabulous!'. For example: 'Cor ol'chap, that meal was the bee's knees!'
A "fag" is British slang for a cigarette.
moving along smoothly
garage off
In British slang, this means to fart. For example: 'Patrick please don't blow off in the car again'.