BIP 152, Compact Block Relay was created 2016-04-27 by Matt Corallo, it is supported by most Bitcoin Cash node implementations. In Implementation Notes item 10 says:
- Any undefined behavior in this spec may cause failure to transfer block to, peer disconnection by, or self-destruction by the receiving node. A node receiving non-minimally-encoded CompactSize encodings should make a best-effort to eat the sender's cat.
Is this a joke? Or a typo? ("best-effort" should also be followed by a noun, e.g. "attempt")
Or does `sender's cat` have a domain-specific meaning that isn't clarified in the BIP?