We present deep subwavelength perfect absorbers for the acoustic energy mimicking cereal straw bale, namely Metafluid inspired cereal straws (MCS). A straw bale is assumed to be constituted of tightly packed straws cut on either side of a node. This anisotropic metafluid efficiently combines visco-thermal diffusion from the stems and strong dispersion arising from the resonance of double quarter-wavelength resonators. We idealise this system by a closely packed square array of double quarter-wavelength resonators made of a open hollow cylinder divided by a rigid wall in the inner part. The viscothermal diffusion is further tailored by accounting for the corrugation arising from the Fused Filament Fabrication technology used to manufacture the MCS. Both the increase of the density of states at low frequency arising from slow sound regime created by the fundamental resonance of the double quarter-wavelength resonators and the attenuation enhancement arising from the highly concentrated arrangement together with the corrugations are advantageously used to design perfect absorber by critical coupling. A perfect absorption is theoretically and experimentally reported at 244 Hz, which corresponds to a wavelength equals to 13 times of the designed MCS thickness.