胯下阻击手
[kuà xià zŭ jī shŏu]
The term '胯下阻击手' means 'the sniper under your crotch'. It's a humorous or self-deprecating term indicating skill and strategy even when starting at disadvantageous positions, similar to the idea of an 'underdog'. Alternatively, it might imply a cheeky humor or playful attitude regarding personal capabilities and ambitions.