# Thick-skinned
Some monsters in NetHack are thick-skinned, which protects them from certain attacks. Thick-skinned monsters have the flag M1_THICK_HIDE in the source code.
The following monsters are thick-skinned:

Gargoyles and winged gargoyles
All mimics
Mumakil, titanotheres, baluchitheria, and mastodons
All dragons (including baby dragons, the Chromatic Dragon, and Ixoth)
Earth elementals
All nagas
Xorns
Skeletons
Wood, clay, stone, glass, gold, and iron golems
Horned devils and barbed devils
Sharks
Crocodiles and salamanders
Effects
Thick-skinned monsters take no damage from any flimsy weapon (such as a bullwhip), or any weapon whose material is undefined (such as a worm tooth).[1] They also take no damage from being kicked.[2] Thick-skinned monsters are immune to staggering blows.[3]

References

↑ src/weapon.c in NetHack 3.6.0, line 302

↑ src/dokick.c in NetHack 3.6.0, line 49

↑ src/uhitm.c in NetHack 3.6.0, line 1047

This page may need to be updated for the current version of NetHack.
It may contain text specific to NetHack 3.6.0. Information on this page may be out of date.
Editors: After reviewing this page and making necessary edits, please change the {{nethack-360}} tag to the current version's tag or {{noversion}} as appropriate.