Literally, “the guts are horizontal”. Compare Hokkien 直腸直肚/直肠直肚 (ti̍t-tn̂g-ti̍t-tō͘, “straightforward; honest”, literally “straight intestines and abdomen”).
haláng ang bituka (Baybayin spelling ᜑᜎᜅ᜔ ᜀᜅ᜔ ᜊᜒᜆᜓᜃ)