kissogram
noun [ C ] (also kissagram) uk/ˈkɪs.ə.ɡræm/ us/ˈkɪs.ə.ɡræm/
吻信（在庆祝某事的当天请人送去的书信，向收信人传达爱意）
a message brought by someone who kisses the person who is receiving it, especially one that other people have arranged to be sent as a surprise to that person on a day when they are celebrating something