"lovers' avatar" – avatar that matches the avatar of a significant other (e.g. two halves of one image, two images drawn in a similar style etc), used to indicate a romantic relationship (abbr. for 情侶頭像|情侣头像[qing2 lu : 3 tou2 xiang4])
trad. 情頭
Also written 情頭【qíng tóu】