boff vs wallop

boff

verb
  • To hit; to strike. 

  • to have sexual intercourse (with someone) 

noun
  • A great success; a hit. 

  • A pupil who works hard; a swot. 

  • A line in a film etc that elicits such a laugh. 

  • A big laugh. 

  • A hit or smack. 

wallop

verb
  • To strike heavily, thrash soundly. 

  • To wrap up temporarily. 

  • To flounder, wallow. 

  • To boil with a continued bubbling or heaving and rolling, with noise. 

  • To move in a rolling, cumbersome manner; to waddle. 

  • To rush hastily. 

  • To trounce, beat by a wide margin. 

  • To eat or drink with gusto. 

  • To send a message to all operators on an Internet Relay Chat server. 

noun
  • anything produced by a process that involves boiling; beer, tea, whitewash. 

  • A heavy blow, punch. 

  • A thrill, emotionally excited reaction. 

  • A quick rolling movement; a gallop. 

  • A person's ability to throw such punches. 

  • An emotional impact, psychological force. 

How often have the words boff and wallop occurred in a corpus of books? (source: Google Ngram Viewer )