blow·er 
/ˈblowɚ/ noun
plural blow·ers /ˈblowɚ/ noun [count] : a device that blows air
▪ a leaf blower [=a device that is used for clearing away leaves from the ground by producing a strong current of air] — see also snowblower, whistle-blower
▪ a leaf blower [=a device that is used for clearing away leaves from the ground by producing a strong current of air] — see also snowblower, whistle-blower
on the blower
Brit, informal + old-fashioned : on the telephone
▪ When I finally got him on the blower [=(US) on the horn] he said he couldn't come.
▪ When I finally got him on the blower [=(US) on the horn] he said he couldn't come.
