一头热

Traditional form:

一頭熱

Pinyin (reading):

yītóurè

Definitions:

• one-sided enthusiasm (abbr. for 剃頭挑子一頭熱／剃头挑子一头热 (tìtóutiāoziyītóurè))

Characters:

• 一 - one; a, an; alone
• 头 - head; chief, boss; first, top
• 热 - heat, fever, zeal

Traditional characters:

• 一 - one; a, an; alone
• 頭 - head; chief, boss; first, top
• 熱 - heat, fever, zeal