Portly Washboy Fancy Laundry Paste
From Homestar Runner Wiki
"Portly" Washboy Fancy Laundry Paste is a type of laundry paste that Old-Timey Strong Bad endorsed on Old-Timey Radio in the email radio. Strong Bad used the advertisement to depict Old-Timey radio. The advertisement's jingle on the radio says "Portly Washboy, don't eat it like the cartoon, man", in reference to the child on the logo eating the paste.