"It was probably another section of the mean-tempered river the winged mermaid Nepherina had warned them about, that flowed from the lake that stopped up Mount Pinatuba."
"Later, I discovered that the waste-pipe was completely stopped up with clay."
"No new timbers put in, as far as I could see, only stopped up and tinkered at, and covered over with sailcloth and tarpaulins and that sort of thing — an absolute fraud."