Yes, in British slang, “blower” can refer to a telephone. It’s an informal and somewhat old-fashioned term. The term is thought to originate from speaking tubes used in the past, where you would blow into the tube to get someone’s attention.
Here’s a bit more detail:
Informal British Slang:
“Blower” is primarily used in the UK and is not as common in other English-speaking regions.
Origin:
The term is believed to have derived from the speaking tubes used before telephones, where blowing into the tube would signal someone at the other end.
“On the blower”:
This phrase means “on the telephone”. For example, you might say, “I’ll get on the blower and call him”.
