We present an asymmetric absorber at an exceptional point (EP) with a compact configuration and deep-subwavelength thickness.Unlike conventional side-branched sound absorbers in dual-port systems,the proposed asymmetric absorber exhibits a compact shape that is coaxial with the waveguide.By tuning the loss and geometric parameters of the non-Hermitian system to reach an EP,we observe extreme asymmetric absorption.This phenomenon is theoretically and experimentally validated by observing a quasi-perfect absorption and a near-total reflection for opposite incidences at the ultra-thin (l/28th of the operating wavelength) neck-embedded tube employed in this study.Furthermore,we demonstrate an EP-induced tunable asymmetric absorption.Our study proposes novel approaches to manipulate the EP-induced wave phenomena,paving the way for the development of novel acoustic absorbers,sensors,isolators,and directional devices.