bear hug

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A rough, tight hug.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun any especially large, tight or enthusiastic hug, usually friendly and especially between men
• noun in business, a hostile takeover effort in which one firm offers to buy the other firm at a share price too high to refuse
• noun in wrestling, a hold with the arms around the opponent

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a takeover bid so attractive that the directors of the target company must approve it or risk shareholder protest
• noun a wrestling hold with arms locked tightly around the opponent