プログレッシブ和英中辞典(第4版)の解説
びんじょう【便乗】
&fRoman1;〔人が乗るのに乗じること〕
新宿まで友達が車に便乗させてくれた
A friend gave me a lift in his car as far as Shinjuku.
&fRoman2;〔機会を利用すること〕
公共料金の値上げに便乗して業者は価格を上げた
Manufacturers took advantage of the hike in public utility charges to raise prices.
便乗商法
piggybacking ((on the need for; on the shortage of))
便乗値上げ
an opportunistic price hike; price gouging
便乗値上げする
jump on the bandwagon and increase prices／raise the price ((of a thing))，taking advantage of a general rise in prices