champertous在这里是帮诉的、帮诉性的意思。

champertous contract帮诉合同。

即旨在帮讼而由帮讼人与原告或被告订立的合同。该合同具有促进或拖延诉讼的倾向，或是将诉讼的控制权或支配权转移给对诉讼标的无权利或无利益的人。该合同不同于诉讼协议，尤其是律师与委托人间关于胜诉酬金的协议，这种协议中律师同意使当事人避免因该律师所建议的诉讼必需支付的费用而招致的损失。 

其相关英文释义如下：A champertous agreement is one in terms of which a person provides a litigant with funds to prosecute an action in return for a share of the proceeds. It goes back to the Roman and Roman-Dutch periods. Originally known as pacta de quota litis, these agreements were looked upon with disfavour by the courts.

以下为相关双语示例，供参考：

The agreements between recovery agents and their customers are champertous and constitute a crime in Hong Kong.

索偿代理与其客户的协议属于帮诉行为，在香港，这是一种罪行。

Therefore, the lawless elements engaging in champerty can talk the victims who have sustained injuries at work or in an accident into applying for legal aid and then choosing their lawyers to represent them, so that they can carry out champertous activities with the huge resources obtained from legal aid. legco.gov.hk

按现行制度，由于法援申请人可以自行选择代表律师，因此帮诉的不法份子可以游说发生工伤或交通意外的市民申请法援及选择其代表律师，从而得到法援庞大资源，进行帮诉的活动。