So says the advert on page 61 of March's FSM.
Clearly 'frigging' in the USA does not have the same meaning as it does in the UK.
In the UK 'frigging' means to mastrubate as epitomised in the Sex Pistols song 'Frigging in the rigging there was f**k all else to do..."
I guess in the USA it means to 'muck about'?