Green’s Dictionary of Slang

shrimpy adj.

also shrimpie
[shrimp n. (1a)]

(US) small, insignificant, physically slight.

[UK] ‘The Fishmonger!’ in Nobby Songster 37: It is shrimpy, skimpy, limpy, / When that it is in the pot, / But its rakey, flakey, shakey, / When in your hand you have it got.
[US]B. Appel Power-House 249: I’m through. Even shrimpy Bittsy’s better’n me.
[US]E. De Roo Young Wolves 75: Pa didn’t seem to be himself either. He seemed shrimpier than usual. Drawn into his shell.
[US]E. Torres After Hours 166: You take this shrimpie Filipino or Guamgay back in [...] Harlem.
[US]L. Heinemann Paco’s Story (1987) 182: He had a hold of her the way you’d grab some shrimpy litle fucker by the throat.
[US]T. Dorsey Stingray Shuffle 57: When a shrimpy guy is humble and quiet, well, that’s just pitiful.
[US]Ruderman & Laker Busted 63: I struggled to parrallel-park my shrimpy car.