窮酸

(of a scholar) impoverished, shabby and pedantic / impoverished pedant

sour / tart / sick at heart / grieved / sore / aching / pedantic / impractical / to make sarcastic remarks about sb / an acid

poor / destitute / to use up / to exhaust / thoroughly / extremely / (coll.) persistently and pointlessly

wretched look / shabby looks