银样鑞枪头的意思

[a pewter spearhead that shines like silver—an impressive-looking but useless person] 鑞:锡铅合金,即焊锡。样子像银质其实 是焊锡做的枪头。比喻中看不中用

你元来苗而不秀,呸!你是个银样鑞枪头。——元· 王实甫《西厢记》