Wiktionary
whale on
alt. 1 (context slang English) To strike an opponent heavily and repeatedly in a fight. 2 (context slang English) To beat heavily on anything. vb. 1 (context slang English) To strike an opponent heavily and repeatedly in a fight. 2 (context slang English) To beat heavily on anything.
Usage examples of "whale on".
Can you land a full-grown whale on your deck for examination, as a cook dishes a roast-pig?
As is customary in those cases, the boats at once separated, each making for some one lone whale on the outskirts of the shoal.
Furthermore, a whale on a deep or prolonged dive restricts the blood circulation so that the precious oxygen is only distributed to those organs and those regions where it is most vitally needed.