A soft lad in the "scouse" dialect of Liverpool, England is someone who is "soft in the head" or slow-witted.
by UKMikey March 21, 2012
Originating from Liverpool, a slang term meaning 'idiot' or 'stupid', but in a nicer way. Equivalent to Cockney people using the term, 'plonker'.
'Why did you do that? Softlad!'
by Online Fan July 24, 2016