Lawnmower Deth is just thrash/crossover. Probably not worlds different from all the other 80's crossover bands just they came from the UK where humour is a little different. They had silly names, sung about silly topics, did a cover of Kim Wilde's Kid's In America which was weird for a band growing up in the UK and no longer kids. They weren't particularly great at anything they did but they had fun. The reformed a few years back (even had Kim Wilde sing with them in 2015), but fat, balding, 40+ year olds (now probably 50+) don't seem to have the same amount of fun.
NP: BAT - Wings Of Chains