Definition
A white person with a strong inclination and attraction toward Asians.
Origins
Alluding to the rice-based gastronomy of many Asian cuisines.
Opposite In Meaning
How People Actually Use It
Strictly speaking, a person who seeks romantic relations with Asians. Cmmmonly, a short or scrawny white male lacking self-esteem and/or assertiveness who seeks power in interpersonal relationships by attempting to date Asian females whom he perceives to be submissive and obedient. Also, a white male with a prurient but ironically inaccurate fascination with what he perceives as exotic.
"Man, Michael is such a fucking rice chaser -- he keeps going to Thailand to get laid."
Source: Urban Dictionary