From Longman Dictionary of Contemporary Englishbe thick on the groundbe thick on the groundBritish English to be present or available in large amounts or numbers OPP thin on the ground Cheap houses aren’t as thick on the ground as they used to be. → thick
Examples from the Corpus
be thick on the ground• It searches for heroes in the knowledge that villains are thick on the ground.• If the security forces are thick on the ground and loyalist gunmen commit murder it is the result of collusion.• They were thickest on the ground in Norfolk and the clothing places of Suffolk. 