I. wal ‧ lop ‧ ing 1 /ˈwɒləpɪŋ $ ˈwɑː-/ BrE AmE noun spoken
give somebody/get a walloping to hit someone hard several times as a punishment, or to be hit in this way
II. walloping 2 BrE AmE adjective [only before noun] British English spoken
very big
walloping great/big
a walloping great house