(シャツなどが)太鼓腹{たいこばら}の上の所でピチピチに伸びてsmooth the sweater over one's belly: おなかの所でセーターのしわを伸ばすlace one's fingers over one's belly: 腹の上で指を組み合わせるbig belly: 太鼓腹{たいこばら}