Blimey! That anyone even has to ask!
Harry = "very", or other word(s) indicating "considerable" or "extreme".
Clampers. Dear me, do we really have to explain this? Weather clamped down??
Thus "harry clampers" is very dank weather.
"Harry shyters/crappers" is very drunk. Do people do this nowadays?
"Harry mingers" might be used used to indicate how one's, er, discrimination slips when harry shyters.
Harry dangerous = the ride back in in 'Trill's car.
Harry bollocking is what you got off "harry staish" (really? Oh well, maybe Crabs do say that) when the harry minger you got home at 0330 turned out to be his daughter...
"Harry Pusser"= excessively bureaucratic/rigid (RN only) - ie, harry staish at the interview.
geddit?