矮热学长
[ăi rè xué zhăng]
The term '矮热学长' translates roughly into 'short and enthusiastic senior student'. In a Chinese university or school setting, a '学长' refers to an older or more advanced student (like a senior in college). The other parts add description: 'short' likely describes physical stature while 'enthusiastic' captures personality. The netizen possibly portrays themselves or admires such traits in a senior.